129998960

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2551}}^1$

素因数の和:2591

約数の個数: 120

約数和(自身を含む): 378788256

約数和(自身を除く): 248789296

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 80, 91, 98, 104, 112, 130, 140, 182, 196, 208, 245, 260, 280, 364, 392, 455, 490, 520, 560, 637, 728, 784, 910, 980, 1040, 1274, 1456, 1820, 1960, 2548, 2551, 3185, 3640, 3920, 5096, 5102, 6370, 7280, 10192, 10204, 12740, 12755, 17857, 20408, 25480, 25510, 33163, 35714, 40816, 50960, 51020, 66326, 71428, 89285, 102040, 124999, 132652, 142856, 165815, 178570, 204080, 232141, 249998, 265304, 285712, 331630, 357140, 464282, 499996, 530608, 624995, 663260, 714280, 928564, 999992, 1160705, 1249990, 1326520, 1428560, 1624987, 1857128, 1999984, 2321410, 2499980, 2653040, 3249974, 3714256, 4642820, 4999960, 6499948, 8124935, 9285640, 9999920, 12999896, 16249870, 18571280, 25999792, 32499740, 64999480, 129998960]

約数ペア:

[(1, 129998960), (2, 64999480), (4, 32499740), (5, 25999792), (7, 18571280), (8, 16249870), (10, 12999896), (13, 9999920), (14, 9285640), (16, 8124935), (20, 6499948), (26, 4999960), (28, 4642820), (35, 3714256), (40, 3249974), (49, 2653040), (52, 2499980), (56, 2321410), (65, 1999984), (70, 1857128), (80, 1624987), (91, 1428560), (98, 1326520), (104, 1249990), (112, 1160705), (130, 999992), (140, 928564), (182, 714280), (196, 663260), (208, 624995), (245, 530608), (260, 499996), (280, 464282), (364, 357140), (392, 331630), (455, 285712), (490, 265304), (520, 249998), (560, 232141), (637, 204080), (728, 178570), (784, 165815), (910, 142856), (980, 132652), (1040, 124999), (1274, 102040), (1456, 89285), (1820, 71428), (1960, 66326), (2548, 51020), (2551, 50960), (3185, 40816), (3640, 35714), (3920, 33163), (5096, 25510), (5102, 25480), (6370, 20408), (7280, 17857), (10192, 12755), (10204, 12740)]