18658120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{677}}^1$

素因数の和:754

約数の個数: 64

約数和(自身を含む): 46131120

約数和(自身を除く): 27473000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 53, 65, 104, 106, 130, 212, 260, 265, 424, 520, 530, 677, 689, 1060, 1354, 1378, 2120, 2708, 2756, 3385, 3445, 5416, 5512, 6770, 6890, 8801, 13540, 13780, 17602, 27080, 27560, 35204, 35881, 44005, 70408, 71762, 88010, 143524, 176020, 179405, 287048, 352040, 358810, 466453, 717620, 932906, 1435240, 1865812, 2332265, 3731624, 4664530, 9329060, 18658120]

約数ペア:

[(1, 18658120), (2, 9329060), (4, 4664530), (5, 3731624), (8, 2332265), (10, 1865812), (13, 1435240), (20, 932906), (26, 717620), (40, 466453), (52, 358810), (53, 352040), (65, 287048), (104, 179405), (106, 176020), (130, 143524), (212, 88010), (260, 71762), (265, 70408), (424, 44005), (520, 35881), (530, 35204), (677, 27560), (689, 27080), (1060, 17602), (1354, 13780), (1378, 13540), (2120, 8801), (2708, 6890), (2756, 6770), (3385, 5512), (3445, 5416)]