81501928

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{113}}^1\times {\mathrm{1013}}^1$

素因数の和:1221

約数の個数: 32

約数和(自身を含む): 156054600

約数和(自身を除く): 74552672

約数列:

[1, 2, 4, 8, 89, 113, 178, 226, 356, 452, 712, 904, 1013, 2026, 4052, 8104, 10057, 20114, 40228, 80456, 90157, 114469, 180314, 228938, 360628, 457876, 721256, 915752, 10187741, 20375482, 40750964, 81501928]

約数ペア:

[(1, 81501928), (2, 40750964), (4, 20375482), (8, 10187741), (89, 915752), (113, 721256), (178, 457876), (226, 360628), (356, 228938), (452, 180314), (712, 114469), (904, 90157), (1013, 80456), (2026, 40228), (4052, 20114), (8104, 10057)]