64750640

素因数分解:

$2^4\times 5^1\times {\mathrm{809383}}^1$

素因数の和:809396

約数の個数: 20

約数和(自身を含む): 150545424

約数和(自身を除く): 85794784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 809383, 1618766, 3237532, 4046915, 6475064, 8093830, 12950128, 16187660, 32375320, 64750640]

約数ペア:

[(1, 64750640), (2, 32375320), (4, 16187660), (5, 12950128), (8, 8093830), (10, 6475064), (16, 4046915), (20, 3237532), (40, 1618766), (80, 809383)]