281273720

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1$

素因数の和:147

約数の個数: 256

約数和(自身を含む): 846720000

約数和(自身を除く): 565446280

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 19, 20, 26, 28, 35, 38, 40, 49, 52, 56, 65, 70, 76, 83, 91, 95, 98, 104, 130, 133, 140, 152, 166, 182, 190, 196, 245, 247, 260, 266, 280, 332, 343, 364, 380, 392, 415, 455, 490, 494, 520, 532, 581, 637, 664, 665, 686, 728, 760, 830, 910, 931, 980, 988, 1064, 1079, 1162, 1235, 1274, 1330, 1372, 1577, 1660, 1715, 1729, 1820, 1862, 1960, 1976, 2158, 2324, 2470, 2548, 2660, 2744, 2905, 3154, 3185, 3320, 3430, 3458, 3640, 3724, 4067, 4316, 4459, 4648, 4655, 4940, 5096, 5320, 5395, 5810, 6308, 6370, 6517, 6860, 6916, 7448, 7553, 7885, 8134, 8632, 8645, 8918, 9310, 9880, 10790, 11039, 11620, 12103, 12616, 12740, 13034, 13720, 13832, 15106, 15770, 16268, 17290, 17836, 18620, 20335, 20501, 21580, 22078, 22295, 23240, 24206, 25480, 26068, 28469, 30212, 31540, 32536, 32585, 34580, 35672, 37240, 37765, 40670, 41002, 43160, 44156, 44590, 48412, 52136, 52871, 55195, 56938, 60424, 60515, 63080, 65170, 69160, 75530, 77273, 81340, 82004, 84721, 88312, 89180, 96824, 102505, 105742, 110390, 113876, 121030, 130340, 142345, 143507, 151060, 154546, 162680, 164008, 169442, 178360, 205010, 211484, 220780, 227752, 242060, 260680, 264355, 284690, 287014, 302120, 309092, 338884, 370097, 386365, 410020, 422968, 423605, 441560, 484120, 528710, 540911, 569380, 574028, 618184, 677768, 717535, 740194, 772730, 820040, 847210, 1004549, 1057420, 1081822, 1138760, 1148056, 1435070, 1480388, 1545460, 1694420, 1850485, 2009098, 2114840, 2163644, 2704555, 2870140, 2960776, 3090920, 3388840, 3700970, 4018196, 4327288, 5022745, 5409110, 5740280, 7031843, 7401940, 8036392, 10045490, 10818220, 14063686, 14803880, 20090980, 21636440, 28127372, 35159215, 40181960, 56254744, 70318430, 140636860, 281273720]

約数ペア:

[(1, 281273720), (2, 140636860), (4, 70318430), (5, 56254744), (7, 40181960), (8, 35159215), (10, 28127372), (13, 21636440), (14, 20090980), (19, 14803880), (20, 14063686), (26, 10818220), (28, 10045490), (35, 8036392), (38, 7401940), (40, 7031843), (49, 5740280), (52, 5409110), (56, 5022745), (65, 4327288), (70, 4018196), (76, 3700970), (83, 3388840), (91, 3090920), (95, 2960776), (98, 2870140), (104, 2704555), (130, 2163644), (133, 2114840), (140, 2009098), (152, 1850485), (166, 1694420), (182, 1545460), (190, 1480388), (196, 1435070), (245, 1148056), (247, 1138760), (260, 1081822), (266, 1057420), (280, 1004549), (332, 847210), (343, 820040), (364, 772730), (380, 740194), (392, 717535), (415, 677768), (455, 618184), (490, 574028), (494, 569380), (520, 540911), (532, 528710), (581, 484120), (637, 441560), (664, 423605), (665, 422968), (686, 410020), (728, 386365), (760, 370097), (830, 338884), (910, 309092), (931, 302120), (980, 287014), (988, 284690), (1064, 264355), (1079, 260680), (1162, 242060), (1235, 227752), (1274, 220780), (1330, 211484), (1372, 205010), (1577, 178360), (1660, 169442), (1715, 164008), (1729, 162680), (1820, 154546), (1862, 151060), (1960, 143507), (1976, 142345), (2158, 130340), (2324, 121030), (2470, 113876), (2548, 110390), (2660, 105742), (2744, 102505), (2905, 96824), (3154, 89180), (3185, 88312), (3320, 84721), (3430, 82004), (3458, 81340), (3640, 77273), (3724, 75530), (4067, 69160), (4316, 65170), (4459, 63080), (4648, 60515), (4655, 60424), (4940, 56938), (5096, 55195), (5320, 52871), (5395, 52136), (5810, 48412), (6308, 44590), (6370, 44156), (6517, 43160), (6860, 41002), (6916, 40670), (7448, 37765), (7553, 37240), (7885, 35672), (8134, 34580), (8632, 32585), (8645, 32536), (8918, 31540), (9310, 30212), (9880, 28469), (10790, 26068), (11039, 25480), (11620, 24206), (12103, 23240), (12616, 22295), (12740, 22078), (13034, 21580), (13720, 20501), (13832, 20335), (15106, 18620), (15770, 17836), (16268, 17290)]