1640287875

素因数分解:

$3^1\times 5^3\times {\mathrm{103}}^1\times {\mathrm{42467}}^1$

素因数の和:42588

約数の個数: 32

約数和(自身を含む): 2756003328

約数和(自身を除く): 1115715453

約数列:

[1, 3, 5, 15, 25, 75, 103, 125, 309, 375, 515, 1545, 2575, 7725, 12875, 38625, 42467, 127401, 212335, 637005, 1061675, 3185025, 4374101, 5308375, 13122303, 15925125, 21870505, 65611515, 109352525, 328057575, 546762625, 1640287875]

約数ペア:

[(1, 1640287875), (3, 546762625), (5, 328057575), (15, 109352525), (25, 65611515), (75, 21870505), (103, 15925125), (125, 13122303), (309, 5308375), (375, 4374101), (515, 3185025), (1545, 1061675), (2575, 637005), (7725, 212335), (12875, 127401), (38625, 42467)]