81821072

素因数分解:

$2^4\times {\mathrm{557}}^1\times {\mathrm{9181}}^1$

素因数の和:9746

約数の個数: 20

約数和(自身を含む): 158830236

約数和(自身を除く): 77009164

約数列:

[1, 2, 4, 8, 16, 557, 1114, 2228, 4456, 8912, 9181, 18362, 36724, 73448, 146896, 5113817, 10227634, 20455268, 40910536, 81821072]

約数ペア:

[(1, 81821072), (2, 40910536), (4, 20455268), (8, 10227634), (16, 5113817), (557, 146896), (1114, 73448), (2228, 36724), (4456, 18362), (8912, 9181)]