20819710

素因数分解:

$2^1\times 5^1\times {\mathrm{569}}^1\times {\mathrm{3659}}^1$

素因数の和:4235

約数の個数: 16

約数和(自身を含む): 37551600

約数和(自身を除く): 16731890

約数列:

[1, 2, 5, 10, 569, 1138, 2845, 3659, 5690, 7318, 18295, 36590, 2081971, 4163942, 10409855, 20819710]

約数ペア:

[(1, 20819710), (2, 10409855), (5, 4163942), (10, 2081971), (569, 36590), (1138, 18295), (2845, 7318), (3659, 5690)]