104020240

素因数分解:

$2^4\times 5^1\times {\mathrm{1300253}}^1$

素因数の和:1300266

約数の個数: 20

約数和(自身を含む): 241847244

約数和(自身を除く): 137827004

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1300253, 2600506, 5201012, 6501265, 10402024, 13002530, 20804048, 26005060, 52010120, 104020240]

約数ペア:

[(1, 104020240), (2, 52010120), (4, 26005060), (5, 20804048), (8, 13002530), (10, 10402024), (16, 6501265), (20, 5201012), (40, 2600506), (80, 1300253)]