64967555

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{173}}^1$

素因数の和:323

約数の個数: 32

約数和(自身を含む): 85190400

約数和(自身を除く): 20222845

約数列:

[1, 5, 19, 59, 67, 95, 173, 295, 335, 865, 1121, 1273, 3287, 3953, 5605, 6365, 10207, 11591, 16435, 19765, 51035, 57955, 75107, 193933, 220229, 375535, 683869, 969665, 1101145, 3419345, 12993511, 64967555]

約数ペア:

[(1, 64967555), (5, 12993511), (19, 3419345), (59, 1101145), (67, 969665), (95, 683869), (173, 375535), (295, 220229), (335, 193933), (865, 75107), (1121, 57955), (1273, 51035), (3287, 19765), (3953, 16435), (5605, 11591), (6365, 10207)]