9901385

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{179}}^1$

素因数の和:257

約数の個数: 32

約数和(自身を含む): 13789440

約数和(自身を除く): 3888055

約数列:

[1, 5, 13, 23, 37, 65, 115, 179, 185, 299, 481, 851, 895, 1495, 2327, 2405, 4117, 4255, 6623, 11063, 11635, 20585, 33115, 53521, 55315, 86099, 152329, 267605, 430495, 761645, 1980277, 9901385]

約数ペア:

[(1, 9901385), (5, 1980277), (13, 761645), (23, 430495), (37, 267605), (65, 152329), (115, 86099), (179, 55315), (185, 53521), (299, 33115), (481, 20585), (851, 11635), (895, 11063), (1495, 6623), (2327, 4255), (2405, 4117)]