72421040

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{8963}}^1$

素因数の和:9077

約数の個数: 40

約数和(自身を含む): 170065008

約数和(自身を除く): 97643968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1616, 2020, 4040, 8080, 8963, 17926, 35852, 44815, 71704, 89630, 143408, 179260, 358520, 717040, 905263, 1810526, 3621052, 4526315, 7242104, 9052630, 14484208, 18105260, 36210520, 72421040]

約数ペア:

[(1, 72421040), (2, 36210520), (4, 18105260), (5, 14484208), (8, 9052630), (10, 7242104), (16, 4526315), (20, 3621052), (40, 1810526), (80, 905263), (101, 717040), (202, 358520), (404, 179260), (505, 143408), (808, 89630), (1010, 71704), (1616, 44815), (2020, 35852), (4040, 17926), (8080, 8963)]