70897720

素因数分解:

$2^3\times 5^1\times {\mathrm{443}}^1\times {\mathrm{4001}}^1$

素因数の和:4455

約数の個数: 32

約数和(自身を含む): 159919920

約数和(自身を除く): 89022200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 443, 886, 1772, 2215, 3544, 4001, 4430, 8002, 8860, 16004, 17720, 20005, 32008, 40010, 80020, 160040, 1772443, 3544886, 7089772, 8862215, 14179544, 17724430, 35448860, 70897720]

約数ペア:

[(1, 70897720), (2, 35448860), (4, 17724430), (5, 14179544), (8, 8862215), (10, 7089772), (20, 3544886), (40, 1772443), (443, 160040), (886, 80020), (1772, 40010), (2215, 32008), (3544, 20005), (4001, 17720), (4430, 16004), (8002, 8860)]