8980240

素因数分解:

$2^4\times 5^1\times {\mathrm{112253}}^1$

素因数の和:112266

約数の個数: 20

約数和(自身を含む): 20879244

約数和(自身を除く): 11899004

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 112253, 224506, 449012, 561265, 898024, 1122530, 1796048, 2245060, 4490120, 8980240]

約数ペア:

[(1, 8980240), (2, 4490120), (4, 2245060), (5, 1796048), (8, 1122530), (10, 898024), (16, 561265), (20, 449012), (40, 224506), (80, 112253)]