64839820

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{54949}}^1$

素因数の和:55017

約数の個数: 24

約数和(自身を含む): 138474000

約数和(自身を除く): 73634180

約数列:

[1, 2, 4, 5, 10, 20, 59, 118, 236, 295, 590, 1180, 54949, 109898, 219796, 274745, 549490, 1098980, 3241991, 6483982, 12967964, 16209955, 32419910, 64839820]

約数ペア:

[(1, 64839820), (2, 32419910), (4, 16209955), (5, 12967964), (10, 6483982), (20, 3241991), (59, 1098980), (118, 549490), (236, 274745), (295, 219796), (590, 109898), (1180, 54949)]