67161520

素因数分解:

$2^4\times 5^1\times {\mathrm{839519}}^1$

素因数の和:839532

約数の個数: 20

約数和(自身を含む): 156150720

約数和(自身を除く): 88989200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 839519, 1679038, 3358076, 4197595, 6716152, 8395190, 13432304, 16790380, 33580760, 67161520]

約数ペア:

[(1, 67161520), (2, 33580760), (4, 16790380), (5, 13432304), (8, 8395190), (10, 6716152), (16, 4197595), (20, 3358076), (40, 1679038), (80, 839519)]