256554815

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{2531}}^1$

素因数の和:2663

約数の個数: 32

約数和(自身を含む): 357315840

約数和(自身を除く): 100761025

約数列:

[1, 5, 11, 19, 55, 95, 97, 209, 485, 1045, 1067, 1843, 2531, 5335, 9215, 12655, 20273, 27841, 48089, 101365, 139205, 240445, 245507, 528979, 1227535, 2644895, 2700577, 4664633, 13502885, 23323165, 51310963, 256554815]

約数ペア:

[(1, 256554815), (5, 51310963), (11, 23323165), (19, 13502885), (55, 4664633), (95, 2700577), (97, 2644895), (209, 1227535), (485, 528979), (1045, 245507), (1067, 240445), (1843, 139205), (2531, 101365), (5335, 48089), (9215, 27841), (12655, 20273)]