66920080

素因数分解:

$2^4\times 5^1\times {\mathrm{836501}}^1$

素因数の和:836514

約数の個数: 20

約数和(自身を含む): 155589372

約数和(自身を除く): 88669292

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 836501, 1673002, 3346004, 4182505, 6692008, 8365010, 13384016, 16730020, 33460040, 66920080]

約数ペア:

[(1, 66920080), (2, 33460040), (4, 16730020), (5, 13384016), (8, 8365010), (10, 6692008), (16, 4182505), (20, 3346004), (40, 1673002), (80, 836501)]