64738880

素因数分解:

$2^6\times 5^1\times {\mathrm{202309}}^1$

素因数の和:202326

約数の個数: 28

約数和(自身を含む): 154160220

約数和(自身を除く): 89421340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 202309, 404618, 809236, 1011545, 1618472, 2023090, 3236944, 4046180, 6473888, 8092360, 12947776, 16184720, 32369440, 64738880]

約数ペア:

[(1, 64738880), (2, 32369440), (4, 16184720), (5, 12947776), (8, 8092360), (10, 6473888), (16, 4046180), (20, 3236944), (32, 2023090), (40, 1618472), (64, 1011545), (80, 809236), (160, 404618), (320, 202309)]