20265920

素因数分解:

$2^6\times 5^1\times {\mathrm{63331}}^1$

素因数の和:63348

約数の個数: 28

約数和(自身を含む): 48258984

約数和(自身を除く): 27993064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 63331, 126662, 253324, 316655, 506648, 633310, 1013296, 1266620, 2026592, 2533240, 4053184, 5066480, 10132960, 20265920]

約数ペア:

[(1, 20265920), (2, 10132960), (4, 5066480), (5, 4053184), (8, 2533240), (10, 2026592), (16, 1266620), (20, 1013296), (32, 633310), (40, 506648), (64, 316655), (80, 253324), (160, 126662), (320, 63331)]