15221220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{36241}}^1$

素因数の和:36260

約数の個数: 48

約数和(自身を含む): 48709248

約数和(自身を除く): 33488028

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 36241, 72482, 108723, 144964, 181205, 217446, 253687, 362410, 434892, 507374, 543615, 724820, 761061, 1014748, 1087230, 1268435, 1522122, 2174460, 2536870, 3044244, 3805305, 5073740, 7610610, 15221220]

約数ペア:

[(1, 15221220), (2, 7610610), (3, 5073740), (4, 3805305), (5, 3044244), (6, 2536870), (7, 2174460), (10, 1522122), (12, 1268435), (14, 1087230), (15, 1014748), (20, 761061), (21, 724820), (28, 543615), (30, 507374), (35, 434892), (42, 362410), (60, 253687), (70, 217446), (84, 181205), (105, 144964), (140, 108723), (210, 72482), (420, 36241)]