12712517545

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{27939599}}^1$

素因数の和:27939624

約数の個数: 16

約数和(自身を含む): 18775411200

約数和(自身を除く): 6062893655

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 27939599, 139697995, 195577193, 363214787, 977885965, 1816073935, 2542503509, 12712517545]

約数ペア:

[(1, 12712517545), (5, 2542503509), (7, 1816073935), (13, 977885965), (35, 363214787), (65, 195577193), (91, 139697995), (455, 27939599)]