81155820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1352597}}^1$

素因数の和:1352609

約数の個数: 24

約数和(自身を含む): 227236464

約数和(自身を除く): 146080644

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1352597, 2705194, 4057791, 5410388, 6762985, 8115582, 13525970, 16231164, 20288955, 27051940, 40577910, 81155820]

約数ペア:

[(1, 81155820), (2, 40577910), (3, 27051940), (4, 20288955), (5, 16231164), (6, 13525970), (10, 8115582), (12, 6762985), (15, 5410388), (20, 4057791), (30, 2705194), (60, 1352597)]