20291207840

素因数分解:

$2^5\times 5^1\times {\mathrm{2663}}^1\times {\mathrm{47623}}^1$

素因数の和:50301

約数の個数: 48

約数和(自身を含む): 47956987008

約数和(自身を除く): 27665779168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 2663, 5326, 10652, 13315, 21304, 26630, 42608, 47623, 53260, 85216, 95246, 106520, 190492, 213040, 238115, 380984, 426080, 476230, 761968, 952460, 1523936, 1904920, 3809840, 7619680, 126820049, 253640098, 507280196, 634100245, 1014560392, 1268200490, 2029120784, 2536400980, 4058241568, 5072801960, 10145603920, 20291207840]

約数ペア:

[(1, 20291207840), (2, 10145603920), (4, 5072801960), (5, 4058241568), (8, 2536400980), (10, 2029120784), (16, 1268200490), (20, 1014560392), (32, 634100245), (40, 507280196), (80, 253640098), (160, 126820049), (2663, 7619680), (5326, 3809840), (10652, 1904920), (13315, 1523936), (21304, 952460), (26630, 761968), (42608, 476230), (47623, 426080), (53260, 380984), (85216, 238115), (95246, 213040), (106520, 190492)]