1247147720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{4337}}^1$

素因数の和:4447

約数の個数: 128

約数和(自身を含む): 3498163200

約数和(自身を除く): 2251015480

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 79, 91, 104, 130, 140, 158, 182, 260, 280, 316, 364, 395, 455, 520, 553, 632, 728, 790, 910, 1027, 1106, 1580, 1820, 2054, 2212, 2765, 3160, 3640, 4108, 4337, 4424, 5135, 5530, 7189, 8216, 8674, 10270, 11060, 14378, 17348, 20540, 21685, 22120, 28756, 30359, 34696, 35945, 41080, 43370, 56381, 57512, 60718, 71890, 86740, 112762, 121436, 143780, 151795, 173480, 225524, 242872, 281905, 287560, 303590, 342623, 394667, 451048, 563810, 607180, 685246, 789334, 1127620, 1214360, 1370492, 1578668, 1713115, 1973335, 2255240, 2398361, 2740984, 3157336, 3426230, 3946670, 4454099, 4796722, 6852460, 7893340, 8908198, 9593444, 11991805, 13704920, 15786680, 17816396, 19186888, 22270495, 23983610, 31178693, 35632792, 44540990, 47967220, 62357386, 89081980, 95934440, 124714772, 155893465, 178163960, 249429544, 311786930, 623573860, 1247147720]

約数ペア:

[(1, 1247147720), (2, 623573860), (4, 311786930), (5, 249429544), (7, 178163960), (8, 155893465), (10, 124714772), (13, 95934440), (14, 89081980), (20, 62357386), (26, 47967220), (28, 44540990), (35, 35632792), (40, 31178693), (52, 23983610), (56, 22270495), (65, 19186888), (70, 17816396), (79, 15786680), (91, 13704920), (104, 11991805), (130, 9593444), (140, 8908198), (158, 7893340), (182, 6852460), (260, 4796722), (280, 4454099), (316, 3946670), (364, 3426230), (395, 3157336), (455, 2740984), (520, 2398361), (553, 2255240), (632, 1973335), (728, 1713115), (790, 1578668), (910, 1370492), (1027, 1214360), (1106, 1127620), (1580, 789334), (1820, 685246), (2054, 607180), (2212, 563810), (2765, 451048), (3160, 394667), (3640, 342623), (4108, 303590), (4337, 287560), (4424, 281905), (5135, 242872), (5530, 225524), (7189, 173480), (8216, 151795), (8674, 143780), (10270, 121436), (11060, 112762), (14378, 86740), (17348, 71890), (20540, 60718), (21685, 57512), (22120, 56381), (28756, 43370), (30359, 41080), (34696, 35945)]