90174580

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{277}}^1\times {\mathrm{397}}^1$

素因数の和:724

約数の個数: 48

約数和(自身を含む): 195176016

約数和(自身を除く): 105001436

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 277, 397, 410, 554, 794, 820, 1108, 1385, 1588, 1985, 2770, 3970, 5540, 7940, 11357, 16277, 22714, 32554, 45428, 56785, 65108, 81385, 109969, 113570, 162770, 219938, 227140, 325540, 439876, 549845, 1099690, 2199380, 4508729, 9017458, 18034916, 22543645, 45087290, 90174580]

約数ペア:

[(1, 90174580), (2, 45087290), (4, 22543645), (5, 18034916), (10, 9017458), (20, 4508729), (41, 2199380), (82, 1099690), (164, 549845), (205, 439876), (277, 325540), (397, 227140), (410, 219938), (554, 162770), (794, 113570), (820, 109969), (1108, 81385), (1385, 65108), (1588, 56785), (1985, 45428), (2770, 32554), (3970, 22714), (5540, 16277), (7940, 11357)]