21912640

素因数分解:

$2^6\times 5^1\times {\mathrm{68477}}^1$

素因数の和:68494

約数の個数: 28

約数和(自身を含む): 52180236

約数和(自身を除く): 30267596

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 68477, 136954, 273908, 342385, 547816, 684770, 1095632, 1369540, 2191264, 2739080, 4382528, 5478160, 10956320, 21912640]

約数ペア:

[(1, 21912640), (2, 10956320), (4, 5478160), (5, 4382528), (8, 2739080), (10, 2191264), (16, 1369540), (20, 1095632), (32, 684770), (40, 547816), (64, 342385), (80, 273908), (160, 136954), (320, 68477)]