64288720

素因数分解:

$2^4\times 5^1\times {\mathrm{803609}}^1$

素因数の和:803622

約数の個数: 20

約数和(自身を含む): 149471460

約数和(自身を除く): 85182740

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 803609, 1607218, 3214436, 4018045, 6428872, 8036090, 12857744, 16072180, 32144360, 64288720]

約数ペア:

[(1, 64288720), (2, 32144360), (4, 16072180), (5, 12857744), (8, 8036090), (10, 6428872), (16, 4018045), (20, 3214436), (40, 1607218), (80, 803609)]