20170972760

素因数分解:

$2^3\times 5^1\times {\mathrm{504274319}}^1$

素因数の和:504274330

約数の個数: 16

約数和(自身を含む): 45384688800

約数和(自身を除く): 25213716040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 504274319, 1008548638, 2017097276, 2521371595, 4034194552, 5042743190, 10085486380, 20170972760]

約数ペア:

[(1, 20170972760), (2, 10085486380), (4, 5042743190), (5, 4034194552), (8, 2521371595), (10, 2017097276), (20, 1008548638), (40, 504274319)]