31499930

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{3719}}^1$

素因数の和:3755

約数の個数: 48

約数和(自身を含む): 71245440

約数和(自身を除く): 39745510

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 121, 154, 242, 385, 605, 770, 847, 1210, 1694, 3719, 4235, 7438, 8470, 18595, 26033, 37190, 40909, 52066, 81818, 130165, 204545, 260330, 286363, 409090, 449999, 572726, 899998, 1431815, 2249995, 2863630, 3149993, 4499990, 6299986, 15749965, 31499930]

約数ペア:

[(1, 31499930), (2, 15749965), (5, 6299986), (7, 4499990), (10, 3149993), (11, 2863630), (14, 2249995), (22, 1431815), (35, 899998), (55, 572726), (70, 449999), (77, 409090), (110, 286363), (121, 260330), (154, 204545), (242, 130165), (385, 81818), (605, 52066), (770, 40909), (847, 37190), (1210, 26033), (1694, 18595), (3719, 8470), (4235, 7438)]