31830660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{977}}^1$

素因数の和:1173

約数の個数: 72

約数和(自身を含む): 97185816

約数和(自身を除く): 65355156

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 181, 362, 543, 724, 905, 977, 1086, 1629, 1810, 1954, 2172, 2715, 2931, 3258, 3620, 3908, 4885, 5430, 5862, 6516, 8145, 8793, 9770, 10860, 11724, 14655, 16290, 17586, 19540, 29310, 32580, 35172, 43965, 58620, 87930, 175860, 176837, 353674, 530511, 707348, 884185, 1061022, 1591533, 1768370, 2122044, 2652555, 3183066, 3536740, 5305110, 6366132, 7957665, 10610220, 15915330, 31830660]

約数ペア:

[(1, 31830660), (2, 15915330), (3, 10610220), (4, 7957665), (5, 6366132), (6, 5305110), (9, 3536740), (10, 3183066), (12, 2652555), (15, 2122044), (18, 1768370), (20, 1591533), (30, 1061022), (36, 884185), (45, 707348), (60, 530511), (90, 353674), (180, 176837), (181, 175860), (362, 87930), (543, 58620), (724, 43965), (905, 35172), (977, 32580), (1086, 29310), (1629, 19540), (1810, 17586), (1954, 16290), (2172, 14655), (2715, 11724), (2931, 10860), (3258, 9770), (3620, 8793), (3908, 8145), (4885, 6516), (5430, 5862)]