72107780

素因数分解:

$2^2\times 5^1\times {\mathrm{659}}^1\times {\mathrm{5471}}^1$

素因数の和:6139

約数の個数: 24

約数和(自身を含む): 151683840

約数和(自身を除く): 79576060

約数列:

[1, 2, 4, 5, 10, 20, 659, 1318, 2636, 3295, 5471, 6590, 10942, 13180, 21884, 27355, 54710, 109420, 3605389, 7210778, 14421556, 18026945, 36053890, 72107780]

約数ペア:

[(1, 72107780), (2, 36053890), (4, 18026945), (5, 14421556), (10, 7210778), (20, 3605389), (659, 109420), (1318, 54710), (2636, 27355), (3295, 21884), (5471, 13180), (6590, 10942)]