77880400

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{881}}^1$

素因数の和:929

約数の個数: 120

約数和(自身を含む): 213595704

約数和(自身を除く): 135715304

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 25, 26, 34, 40, 50, 52, 65, 68, 80, 85, 100, 104, 130, 136, 170, 200, 208, 221, 260, 272, 325, 340, 400, 425, 442, 520, 650, 680, 850, 881, 884, 1040, 1105, 1300, 1360, 1700, 1762, 1768, 2210, 2600, 3400, 3524, 3536, 4405, 4420, 5200, 5525, 6800, 7048, 8810, 8840, 11050, 11453, 14096, 14977, 17620, 17680, 22025, 22100, 22906, 29954, 35240, 44050, 44200, 45812, 57265, 59908, 70480, 74885, 88100, 88400, 91624, 114530, 119816, 149770, 176200, 183248, 194701, 229060, 239632, 286325, 299540, 352400, 374425, 389402, 458120, 572650, 599080, 748850, 778804, 916240, 973505, 1145300, 1198160, 1497700, 1557608, 1947010, 2290600, 2995400, 3115216, 3894020, 4581200, 4867525, 5990800, 7788040, 9735050, 15576080, 19470100, 38940200, 77880400]

約数ペア:

[(1, 77880400), (2, 38940200), (4, 19470100), (5, 15576080), (8, 9735050), (10, 7788040), (13, 5990800), (16, 4867525), (17, 4581200), (20, 3894020), (25, 3115216), (26, 2995400), (34, 2290600), (40, 1947010), (50, 1557608), (52, 1497700), (65, 1198160), (68, 1145300), (80, 973505), (85, 916240), (100, 778804), (104, 748850), (130, 599080), (136, 572650), (170, 458120), (200, 389402), (208, 374425), (221, 352400), (260, 299540), (272, 286325), (325, 239632), (340, 229060), (400, 194701), (425, 183248), (442, 176200), (520, 149770), (650, 119816), (680, 114530), (850, 91624), (881, 88400), (884, 88100), (1040, 74885), (1105, 70480), (1300, 59908), (1360, 57265), (1700, 45812), (1762, 44200), (1768, 44050), (2210, 35240), (2600, 29954), (3400, 22906), (3524, 22100), (3536, 22025), (4405, 17680), (4420, 17620), (5200, 14977), (5525, 14096), (6800, 11453), (7048, 11050), (8810, 8840)]