261640760

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{89603}}^1$

素因数の和:89687

約数の個数: 32

約数和(自身を含む): 596762640

約数和(自身を除く): 335121880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 89603, 179206, 358412, 448015, 716824, 896030, 1792060, 3584120, 6541019, 13082038, 26164076, 32705095, 52328152, 65410190, 130820380, 261640760]

約数ペア:

[(1, 261640760), (2, 130820380), (4, 65410190), (5, 52328152), (8, 32705095), (10, 26164076), (20, 13082038), (40, 6541019), (73, 3584120), (146, 1792060), (292, 896030), (365, 716824), (584, 448015), (730, 358412), (1460, 179206), (2920, 89603)]