61899220

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{43591}}^1$

素因数の和:43671

約数の個数: 24

約数和(自身を含む): 131822208

約数和(自身を除く): 69922988

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 43591, 87182, 174364, 217955, 435910, 871820, 3094961, 6189922, 12379844, 15474805, 30949610, 61899220]

約数ペア:

[(1, 61899220), (2, 30949610), (4, 15474805), (5, 12379844), (10, 6189922), (20, 3094961), (71, 871820), (142, 435910), (284, 217955), (355, 174364), (710, 87182), (1420, 43591)]