4090480

素因数分解:

$2^4\times 5^1\times {\mathrm{51131}}^1$

素因数の和:51144

約数の個数: 20

約数和(自身を含む): 9510552

約数和(自身を除く): 5420072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 51131, 102262, 204524, 255655, 409048, 511310, 818096, 1022620, 2045240, 4090480]

約数ペア:

[(1, 4090480), (2, 2045240), (4, 1022620), (5, 818096), (8, 511310), (10, 409048), (16, 255655), (20, 204524), (40, 102262), (80, 51131)]