394736840

素因数分解:

$2^3\times 5^1\times {\mathrm{9868421}}^1$

素因数の和:9868432

約数の個数: 16

約数和(自身を含む): 888157980

約数和(自身を除く): 493421140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 9868421, 19736842, 39473684, 49342105, 78947368, 98684210, 197368420, 394736840]

約数ペア:

[(1, 394736840), (2, 197368420), (4, 98684210), (5, 78947368), (8, 49342105), (10, 39473684), (20, 19736842), (40, 9868421)]