166016720

素因数分解:

$2^4\times 5^1\times {\mathrm{2075209}}^1$

素因数の和:2075222

約数の個数: 20

約数和(自身を含む): 385989060

約数和(自身を除く): 219972340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2075209, 4150418, 8300836, 10376045, 16601672, 20752090, 33203344, 41504180, 83008360, 166016720]

約数ペア:

[(1, 166016720), (2, 83008360), (4, 41504180), (5, 33203344), (8, 20752090), (10, 16601672), (16, 10376045), (20, 8300836), (40, 4150418), (80, 2075209)]