21690560

素因数分解:

$2^6\times 5^1\times {\mathrm{67783}}^1$

素因数の和:67800

約数の個数: 28

約数和(自身を含む): 51651408

約数和(自身を除く): 29960848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 67783, 135566, 271132, 338915, 542264, 677830, 1084528, 1355660, 2169056, 2711320, 4338112, 5422640, 10845280, 21690560]

約数ペア:

[(1, 21690560), (2, 10845280), (4, 5422640), (5, 4338112), (8, 2711320), (10, 2169056), (16, 1355660), (20, 1084528), (32, 677830), (40, 542264), (64, 338915), (80, 271132), (160, 135566), (320, 67783)]