64781660

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{44371}}^1$

素因数の和:44453

約数の個数: 24

約数和(自身を含む): 137908176

約数和(自身を除く): 73126516

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 44371, 88742, 177484, 221855, 443710, 887420, 3239083, 6478166, 12956332, 16195415, 32390830, 64781660]

約数ペア:

[(1, 64781660), (2, 32390830), (4, 16195415), (5, 12956332), (10, 6478166), (20, 3239083), (73, 887420), (146, 443710), (292, 221855), (365, 177484), (730, 88742), (1460, 44371)]