40320280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1$

素因数の和:114

約数の個数: 256

約数和(自身を含む): 130636800

約数和(自身を除く): 90316520

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 19, 20, 22, 26, 28, 35, 38, 40, 44, 52, 53, 55, 56, 65, 70, 76, 77, 88, 91, 95, 104, 106, 110, 130, 133, 140, 143, 152, 154, 182, 190, 209, 212, 220, 247, 260, 265, 266, 280, 286, 308, 364, 371, 380, 385, 418, 424, 440, 455, 494, 520, 530, 532, 572, 583, 616, 665, 689, 715, 728, 742, 760, 770, 836, 910, 988, 1001, 1007, 1045, 1060, 1064, 1144, 1166, 1235, 1330, 1378, 1430, 1463, 1484, 1540, 1672, 1729, 1820, 1855, 1976, 2002, 2014, 2090, 2120, 2332, 2470, 2660, 2717, 2756, 2860, 2915, 2926, 2968, 3080, 3445, 3458, 3640, 3710, 4004, 4028, 4081, 4180, 4664, 4823, 4940, 5005, 5035, 5320, 5434, 5512, 5720, 5830, 5852, 6890, 6916, 7049, 7315, 7420, 7579, 8008, 8056, 8162, 8360, 8645, 9646, 9880, 10010, 10070, 10868, 11077, 11660, 11704, 13091, 13585, 13780, 13832, 14098, 14630, 14840, 15158, 16324, 17290, 19019, 19292, 20020, 20140, 20405, 21736, 22154, 23320, 24115, 26182, 27170, 27560, 28196, 29260, 30316, 32648, 34580, 35245, 37895, 38038, 38584, 40040, 40280, 40810, 44308, 48230, 52364, 53053, 54340, 55385, 56392, 58520, 60632, 65455, 69160, 70490, 75790, 76076, 77539, 81620, 88616, 91637, 95095, 96460, 104728, 106106, 108680, 110770, 130910, 140980, 144001, 151580, 152152, 155078, 163240, 183274, 190190, 192920, 212212, 221540, 261820, 265265, 281960, 288002, 303160, 310156, 366548, 380380, 387695, 424424, 443080, 458185, 523640, 530530, 576004, 620312, 720005, 733096, 760760, 775390, 916370, 1008007, 1061060, 1152008, 1440010, 1550780, 1832740, 2016014, 2122120, 2880020, 3101560, 3665480, 4032028, 5040035, 5760040, 8064056, 10080070, 20160140, 40320280]

約数ペア:

[(1, 40320280), (2, 20160140), (4, 10080070), (5, 8064056), (7, 5760040), (8, 5040035), (10, 4032028), (11, 3665480), (13, 3101560), (14, 2880020), (19, 2122120), (20, 2016014), (22, 1832740), (26, 1550780), (28, 1440010), (35, 1152008), (38, 1061060), (40, 1008007), (44, 916370), (52, 775390), (53, 760760), (55, 733096), (56, 720005), (65, 620312), (70, 576004), (76, 530530), (77, 523640), (88, 458185), (91, 443080), (95, 424424), (104, 387695), (106, 380380), (110, 366548), (130, 310156), (133, 303160), (140, 288002), (143, 281960), (152, 265265), (154, 261820), (182, 221540), (190, 212212), (209, 192920), (212, 190190), (220, 183274), (247, 163240), (260, 155078), (265, 152152), (266, 151580), (280, 144001), (286, 140980), (308, 130910), (364, 110770), (371, 108680), (380, 106106), (385, 104728), (418, 96460), (424, 95095), (440, 91637), (455, 88616), (494, 81620), (520, 77539), (530, 76076), (532, 75790), (572, 70490), (583, 69160), (616, 65455), (665, 60632), (689, 58520), (715, 56392), (728, 55385), (742, 54340), (760, 53053), (770, 52364), (836, 48230), (910, 44308), (988, 40810), (1001, 40280), (1007, 40040), (1045, 38584), (1060, 38038), (1064, 37895), (1144, 35245), (1166, 34580), (1235, 32648), (1330, 30316), (1378, 29260), (1430, 28196), (1463, 27560), (1484, 27170), (1540, 26182), (1672, 24115), (1729, 23320), (1820, 22154), (1855, 21736), (1976, 20405), (2002, 20140), (2014, 20020), (2090, 19292), (2120, 19019), (2332, 17290), (2470, 16324), (2660, 15158), (2717, 14840), (2756, 14630), (2860, 14098), (2915, 13832), (2926, 13780), (2968, 13585), (3080, 13091), (3445, 11704), (3458, 11660), (3640, 11077), (3710, 10868), (4004, 10070), (4028, 10010), (4081, 9880), (4180, 9646), (4664, 8645), (4823, 8360), (4940, 8162), (5005, 8056), (5035, 8008), (5320, 7579), (5434, 7420), (5512, 7315), (5720, 7049), (5830, 6916), (5852, 6890)]