124260020

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{69809}}^1$

素因数の和:69907

約数の個数: 24

約数和(自身を含む): 263881800

約数和(自身を除く): 139621780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 69809, 139618, 279236, 349045, 698090, 1396180, 6213001, 12426002, 24852004, 31065005, 62130010, 124260020]

約数ペア:

[(1, 124260020), (2, 62130010), (4, 31065005), (5, 24852004), (10, 12426002), (20, 6213001), (89, 1396180), (178, 698090), (356, 349045), (445, 279236), (890, 139618), (1780, 69809)]