31916560

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{30689}}^1$

素因数の和:30715

約数の個数: 40

約数和(自身を含む): 79916760

約数和(自身を除く): 48000200

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 30689, 61378, 122756, 153445, 245512, 306890, 398957, 491024, 613780, 797914, 1227560, 1595828, 1994785, 2455120, 3191656, 3989570, 6383312, 7979140, 15958280, 31916560]

約数ペア:

[(1, 31916560), (2, 15958280), (4, 7979140), (5, 6383312), (8, 3989570), (10, 3191656), (13, 2455120), (16, 1994785), (20, 1595828), (26, 1227560), (40, 797914), (52, 613780), (65, 491024), (80, 398957), (104, 306890), (130, 245512), (208, 153445), (260, 122756), (520, 61378), (1040, 30689)]