20764290

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{29}}^2\times {\mathrm{823}}^1$

素因数の和:891

約数の個数: 48

約数和(自身を含む): 51674688

約数和(自身を除く): 30910398

約数列:

[1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 87, 145, 174, 290, 435, 823, 841, 870, 1646, 1682, 2469, 2523, 4115, 4205, 4938, 5046, 8230, 8410, 12345, 12615, 23867, 24690, 25230, 47734, 71601, 119335, 143202, 238670, 358005, 692143, 716010, 1384286, 2076429, 3460715, 4152858, 6921430, 10382145, 20764290]

約数ペア:

[(1, 20764290), (2, 10382145), (3, 6921430), (5, 4152858), (6, 3460715), (10, 2076429), (15, 1384286), (29, 716010), (30, 692143), (58, 358005), (87, 238670), (145, 143202), (174, 119335), (290, 71601), (435, 47734), (823, 25230), (841, 24690), (870, 23867), (1646, 12615), (1682, 12345), (2469, 8410), (2523, 8230), (4115, 5046), (4205, 4938)]