156955780840

素因数分解:

$2^3\times 5^1\times {\mathrm{3923894521}}^1$

素因数の和:3923894532

約数の個数: 16

約数和(自身を含む): 353150506980

約数和(自身を除く): 196194726140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3923894521, 7847789042, 15695578084, 19619472605, 31391156168, 39238945210, 78477890420, 156955780840]

約数ペア:

[(1, 156955780840), (2, 78477890420), (4, 39238945210), (5, 31391156168), (8, 19619472605), (10, 15695578084), (20, 7847789042), (40, 3923894521)]