1396440019840

素因数分解:

$2^7\times 5^1\times {\mathrm{2181937531}}^1$

素因数の和:2181937550

約数の個数: 32

約数和(自身を含む): 3338364423960

約数和(自身を除く): 1941924404120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 2181937531, 4363875062, 8727750124, 10909687655, 17455500248, 21819375310, 34911000496, 43638750620, 69822000992, 87277501240, 139644001984, 174555002480, 279288003968, 349110004960, 698220009920, 1396440019840]

約数ペア:

[(1, 1396440019840), (2, 698220009920), (4, 349110004960), (5, 279288003968), (8, 174555002480), (10, 139644001984), (16, 87277501240), (20, 69822000992), (32, 43638750620), (40, 34911000496), (64, 21819375310), (80, 17455500248), (128, 10909687655), (160, 8727750124), (320, 4363875062), (640, 2181937531)]