20879285

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{701}}^1$

素因数の和:773

約数の個数: 32

約数和(自身を含む): 30730752

約数和(自身を除く): 9851467

約数列:

[1, 5, 7, 23, 35, 37, 115, 161, 185, 259, 701, 805, 851, 1295, 3505, 4255, 4907, 5957, 16123, 24535, 25937, 29785, 80615, 112861, 129685, 181559, 564305, 596551, 907795, 2982755, 4175857, 20879285]

約数ペア:

[(1, 20879285), (5, 4175857), (7, 2982755), (23, 907795), (35, 596551), (37, 564305), (115, 181559), (161, 129685), (185, 112861), (259, 80615), (701, 29785), (805, 25937), (851, 24535), (1295, 16123), (3505, 5957), (4255, 4907)]