7788040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{881}}^1$

素因数の和:922

約数の個数: 64

約数和(自身を含む): 20003760

約数和(自身を除く): 12215720

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 170, 221, 260, 340, 442, 520, 680, 881, 884, 1105, 1762, 1768, 2210, 3524, 4405, 4420, 7048, 8810, 8840, 11453, 14977, 17620, 22906, 29954, 35240, 45812, 57265, 59908, 74885, 91624, 114530, 119816, 149770, 194701, 229060, 299540, 389402, 458120, 599080, 778804, 973505, 1557608, 1947010, 3894020, 7788040]

約数ペア:

[(1, 7788040), (2, 3894020), (4, 1947010), (5, 1557608), (8, 973505), (10, 778804), (13, 599080), (17, 458120), (20, 389402), (26, 299540), (34, 229060), (40, 194701), (52, 149770), (65, 119816), (68, 114530), (85, 91624), (104, 74885), (130, 59908), (136, 57265), (170, 45812), (221, 35240), (260, 29954), (340, 22906), (442, 17620), (520, 14977), (680, 11453), (881, 8840), (884, 8810), (1105, 7048), (1762, 4420), (1768, 4405), (2210, 3524)]