20641400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{467}}^1$

素因数の和:513

約数の個数: 96

約数和(自身を含む): 54840240

約数和(自身を除く): 34198840

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 25, 26, 34, 40, 50, 52, 65, 68, 85, 100, 104, 130, 136, 170, 200, 221, 260, 325, 340, 425, 442, 467, 520, 650, 680, 850, 884, 934, 1105, 1300, 1700, 1768, 1868, 2210, 2335, 2600, 3400, 3736, 4420, 4670, 5525, 6071, 7939, 8840, 9340, 11050, 11675, 12142, 15878, 18680, 22100, 23350, 24284, 30355, 31756, 39695, 44200, 46700, 48568, 60710, 63512, 79390, 93400, 103207, 121420, 151775, 158780, 198475, 206414, 242840, 303550, 317560, 396950, 412828, 516035, 607100, 793900, 825656, 1032070, 1214200, 1587800, 2064140, 2580175, 4128280, 5160350, 10320700, 20641400]

約数ペア:

[(1, 20641400), (2, 10320700), (4, 5160350), (5, 4128280), (8, 2580175), (10, 2064140), (13, 1587800), (17, 1214200), (20, 1032070), (25, 825656), (26, 793900), (34, 607100), (40, 516035), (50, 412828), (52, 396950), (65, 317560), (68, 303550), (85, 242840), (100, 206414), (104, 198475), (130, 158780), (136, 151775), (170, 121420), (200, 103207), (221, 93400), (260, 79390), (325, 63512), (340, 60710), (425, 48568), (442, 46700), (467, 44200), (520, 39695), (650, 31756), (680, 30355), (850, 24284), (884, 23350), (934, 22100), (1105, 18680), (1300, 15878), (1700, 12142), (1768, 11675), (1868, 11050), (2210, 9340), (2335, 8840), (2600, 7939), (3400, 6071), (3736, 5525), (4420, 4670)]