81999420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1366657}}^1$

素因数の和:1366669

約数の個数: 24

約数和(自身を含む): 229598544

約数和(自身を除く): 147599124

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1366657, 2733314, 4099971, 5466628, 6833285, 8199942, 13666570, 16399884, 20499855, 27333140, 40999710, 81999420]

約数ペア:

[(1, 81999420), (2, 40999710), (3, 27333140), (4, 20499855), (5, 16399884), (6, 13666570), (10, 8199942), (12, 6833285), (15, 5466628), (20, 4099971), (30, 2733314), (60, 1366657)]