31188040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1621}}^1$

素因数の和:1682

約数の個数: 64

約数和(自身を含む): 77661360

約数和(自身を除く): 46473320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 37, 40, 52, 65, 74, 104, 130, 148, 185, 260, 296, 370, 481, 520, 740, 962, 1480, 1621, 1924, 2405, 3242, 3848, 4810, 6484, 8105, 9620, 12968, 16210, 19240, 21073, 32420, 42146, 59977, 64840, 84292, 105365, 119954, 168584, 210730, 239908, 299885, 421460, 479816, 599770, 779701, 842920, 1199540, 1559402, 2399080, 3118804, 3898505, 6237608, 7797010, 15594020, 31188040]

約数ペア:

[(1, 31188040), (2, 15594020), (4, 7797010), (5, 6237608), (8, 3898505), (10, 3118804), (13, 2399080), (20, 1559402), (26, 1199540), (37, 842920), (40, 779701), (52, 599770), (65, 479816), (74, 421460), (104, 299885), (130, 239908), (148, 210730), (185, 168584), (260, 119954), (296, 105365), (370, 84292), (481, 64840), (520, 59977), (740, 42146), (962, 32420), (1480, 21073), (1621, 19240), (1924, 16210), (2405, 12968), (3242, 9620), (3848, 8105), (4810, 6484)]