21992880

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1$

素因数の和:108

約数の個数: 320

約数和(自身を含む): 89994240

約数和(自身を除く): 68001360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 19, 20, 21, 24, 26, 28, 30, 35, 38, 39, 40, 42, 48, 52, 53, 56, 57, 60, 65, 70, 76, 78, 80, 84, 91, 95, 104, 105, 106, 112, 114, 120, 130, 133, 140, 152, 156, 159, 168, 182, 190, 195, 208, 210, 212, 228, 240, 247, 260, 265, 266, 273, 280, 285, 304, 312, 318, 336, 364, 371, 380, 390, 399, 420, 424, 455, 456, 494, 520, 530, 532, 546, 560, 570, 624, 636, 665, 689, 728, 741, 742, 760, 780, 795, 798, 840, 848, 910, 912, 988, 1007, 1040, 1060, 1064, 1092, 1113, 1140, 1235, 1272, 1330, 1365, 1378, 1456, 1482, 1484, 1520, 1560, 1590, 1596, 1680, 1729, 1820, 1855, 1976, 1995, 2014, 2067, 2120, 2128, 2184, 2226, 2280, 2470, 2544, 2660, 2730, 2756, 2964, 2968, 3021, 3120, 3180, 3192, 3445, 3458, 3640, 3705, 3710, 3952, 3990, 4028, 4134, 4240, 4368, 4452, 4560, 4823, 4940, 5035, 5187, 5320, 5460, 5512, 5565, 5928, 5936, 6042, 6360, 6384, 6890, 6916, 7049, 7280, 7410, 7420, 7980, 8056, 8268, 8645, 8904, 9646, 9880, 10070, 10335, 10374, 10640, 10920, 11024, 11130, 11856, 12084, 12720, 13091, 13780, 13832, 14098, 14469, 14820, 14840, 15105, 15960, 16112, 16536, 17290, 17808, 19292, 19760, 20140, 20670, 20748, 21147, 21840, 22260, 24115, 24168, 25935, 26182, 27560, 27664, 28196, 28938, 29640, 29680, 30210, 31920, 33072, 34580, 35245, 38584, 39273, 40280, 41340, 41496, 42294, 44520, 48230, 48336, 51870, 52364, 55120, 56392, 57876, 59280, 60420, 65455, 69160, 70490, 72345, 77168, 78546, 80560, 82680, 82992, 84588, 89040, 91637, 96460, 103740, 104728, 105735, 112784, 115752, 120840, 130910, 138320, 140980, 144690, 157092, 165360, 169176, 183274, 192920, 196365, 207480, 209456, 211470, 231504, 241680, 261820, 274911, 281960, 289380, 314184, 338352, 366548, 385840, 392730, 414960, 422940, 458185, 523640, 549822, 563920, 578760, 628368, 733096, 785460, 845880, 916370, 1047280, 1099644, 1157520, 1374555, 1466192, 1570920, 1691760, 1832740, 2199288, 2749110, 3141840, 3665480, 4398576, 5498220, 7330960, 10996440, 21992880]

約数ペア:

[(1, 21992880), (2, 10996440), (3, 7330960), (4, 5498220), (5, 4398576), (6, 3665480), (7, 3141840), (8, 2749110), (10, 2199288), (12, 1832740), (13, 1691760), (14, 1570920), (15, 1466192), (16, 1374555), (19, 1157520), (20, 1099644), (21, 1047280), (24, 916370), (26, 845880), (28, 785460), (30, 733096), (35, 628368), (38, 578760), (39, 563920), (40, 549822), (42, 523640), (48, 458185), (52, 422940), (53, 414960), (56, 392730), (57, 385840), (60, 366548), (65, 338352), (70, 314184), (76, 289380), (78, 281960), (80, 274911), (84, 261820), (91, 241680), (95, 231504), (104, 211470), (105, 209456), (106, 207480), (112, 196365), (114, 192920), (120, 183274), (130, 169176), (133, 165360), (140, 157092), (152, 144690), (156, 140980), (159, 138320), (168, 130910), (182, 120840), (190, 115752), (195, 112784), (208, 105735), (210, 104728), (212, 103740), (228, 96460), (240, 91637), (247, 89040), (260, 84588), (265, 82992), (266, 82680), (273, 80560), (280, 78546), (285, 77168), (304, 72345), (312, 70490), (318, 69160), (336, 65455), (364, 60420), (371, 59280), (380, 57876), (390, 56392), (399, 55120), (420, 52364), (424, 51870), (455, 48336), (456, 48230), (494, 44520), (520, 42294), (530, 41496), (532, 41340), (546, 40280), (560, 39273), (570, 38584), (624, 35245), (636, 34580), (665, 33072), (689, 31920), (728, 30210), (741, 29680), (742, 29640), (760, 28938), (780, 28196), (795, 27664), (798, 27560), (840, 26182), (848, 25935), (910, 24168), (912, 24115), (988, 22260), (1007, 21840), (1040, 21147), (1060, 20748), (1064, 20670), (1092, 20140), (1113, 19760), (1140, 19292), (1235, 17808), (1272, 17290), (1330, 16536), (1365, 16112), (1378, 15960), (1456, 15105), (1482, 14840), (1484, 14820), (1520, 14469), (1560, 14098), (1590, 13832), (1596, 13780), (1680, 13091), (1729, 12720), (1820, 12084), (1855, 11856), (1976, 11130), (1995, 11024), (2014, 10920), (2067, 10640), (2120, 10374), (2128, 10335), (2184, 10070), (2226, 9880), (2280, 9646), (2470, 8904), (2544, 8645), (2660, 8268), (2730, 8056), (2756, 7980), (2964, 7420), (2968, 7410), (3021, 7280), (3120, 7049), (3180, 6916), (3192, 6890), (3445, 6384), (3458, 6360), (3640, 6042), (3705, 5936), (3710, 5928), (3952, 5565), (3990, 5512), (4028, 5460), (4134, 5320), (4240, 5187), (4368, 5035), (4452, 4940), (4560, 4823)]