128638860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{3877}}^1$

素因数の和:3975

約数の個数: 96

約数和(自身を含む): 416962560

約数和(自身を除く): 288323700

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 79, 84, 105, 140, 158, 210, 237, 316, 395, 420, 474, 553, 790, 948, 1106, 1185, 1580, 1659, 2212, 2370, 2765, 3318, 3877, 4740, 5530, 6636, 7754, 8295, 11060, 11631, 15508, 16590, 19385, 23262, 27139, 33180, 38770, 46524, 54278, 58155, 77540, 81417, 108556, 116310, 135695, 162834, 232620, 271390, 306283, 325668, 407085, 542780, 612566, 814170, 918849, 1225132, 1531415, 1628340, 1837698, 2143981, 3062830, 3675396, 4287962, 4594245, 6125660, 6431943, 8575924, 9188490, 10719905, 12863886, 18376980, 21439810, 25727772, 32159715, 42879620, 64319430, 128638860]

約数ペア:

[(1, 128638860), (2, 64319430), (3, 42879620), (4, 32159715), (5, 25727772), (6, 21439810), (7, 18376980), (10, 12863886), (12, 10719905), (14, 9188490), (15, 8575924), (20, 6431943), (21, 6125660), (28, 4594245), (30, 4287962), (35, 3675396), (42, 3062830), (60, 2143981), (70, 1837698), (79, 1628340), (84, 1531415), (105, 1225132), (140, 918849), (158, 814170), (210, 612566), (237, 542780), (316, 407085), (395, 325668), (420, 306283), (474, 271390), (553, 232620), (790, 162834), (948, 135695), (1106, 116310), (1185, 108556), (1580, 81417), (1659, 77540), (2212, 58155), (2370, 54278), (2765, 46524), (3318, 38770), (3877, 33180), (4740, 27139), (5530, 23262), (6636, 19385), (7754, 16590), (8295, 15508), (11060, 11631)]