81993460

素因数分解:

$2^2\times 5^1\times {\mathrm{461}}^1\times {\mathrm{8893}}^1$

素因数の和:9363

約数の個数: 24

約数和(自身を含む): 172579176

約数和(自身を除く): 90585716

約数列:

[1, 2, 4, 5, 10, 20, 461, 922, 1844, 2305, 4610, 8893, 9220, 17786, 35572, 44465, 88930, 177860, 4099673, 8199346, 16398692, 20498365, 40996730, 81993460]

約数ペア:

[(1, 81993460), (2, 40996730), (4, 20498365), (5, 16398692), (10, 8199346), (20, 4099673), (461, 177860), (922, 88930), (1844, 44465), (2305, 35572), (4610, 17786), (8893, 9220)]