31809180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{3137}}^1$

素因数の和:3175

約数の個数: 72

約数和(自身を含む): 96474672

約数和(自身を除く): 64665492

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 169, 195, 260, 338, 390, 507, 676, 780, 845, 1014, 1690, 2028, 2535, 3137, 3380, 5070, 6274, 9411, 10140, 12548, 15685, 18822, 31370, 37644, 40781, 47055, 62740, 81562, 94110, 122343, 163124, 188220, 203905, 244686, 407810, 489372, 530153, 611715, 815620, 1060306, 1223430, 1590459, 2120612, 2446860, 2650765, 3180918, 5301530, 6361836, 7952295, 10603060, 15904590, 31809180]

約数ペア:

[(1, 31809180), (2, 15904590), (3, 10603060), (4, 7952295), (5, 6361836), (6, 5301530), (10, 3180918), (12, 2650765), (13, 2446860), (15, 2120612), (20, 1590459), (26, 1223430), (30, 1060306), (39, 815620), (52, 611715), (60, 530153), (65, 489372), (78, 407810), (130, 244686), (156, 203905), (169, 188220), (195, 163124), (260, 122343), (338, 94110), (390, 81562), (507, 62740), (676, 47055), (780, 40781), (845, 37644), (1014, 31370), (1690, 18822), (2028, 15685), (2535, 12548), (3137, 10140), (3380, 9411), (5070, 6274)]