21722560

素因数分解:

$2^6\times 5^1\times {\mathrm{67883}}^1$

素因数の和:67900

約数の個数: 28

約数和(自身を含む): 51727608

約数和(自身を除く): 30005048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 67883, 135766, 271532, 339415, 543064, 678830, 1086128, 1357660, 2172256, 2715320, 4344512, 5430640, 10861280, 21722560]

約数ペア:

[(1, 21722560), (2, 10861280), (4, 5430640), (5, 4344512), (8, 2715320), (10, 2172256), (16, 1357660), (20, 1086128), (32, 678830), (40, 543064), (64, 339415), (80, 271532), (160, 135766), (320, 67883)]