664454720

素因数分解:

$2^6\times 5^1\times {\mathrm{2076421}}^1$

素因数の和:2076438

約数の個数: 28

約数和(自身を含む): 1582233564

約数和(自身を除く): 917778844

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 2076421, 4152842, 8305684, 10382105, 16611368, 20764210, 33222736, 41528420, 66445472, 83056840, 132890944, 166113680, 332227360, 664454720]

約数ペア:

[(1, 664454720), (2, 332227360), (4, 166113680), (5, 132890944), (8, 83056840), (10, 66445472), (16, 41528420), (20, 33222736), (32, 20764210), (40, 16611368), (64, 10382105), (80, 8305684), (160, 4152842), (320, 2076421)]