20280056980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{7669}}^1\times {\mathrm{6959}}^1$

素因数の和:14656

約数の個数: 48

約数和(自身を含む): 44841888000

約数和(自身を除く): 24561831020

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 6959, 7669, 13918, 15338, 27836, 30676, 34795, 38345, 69590, 76690, 132221, 139180, 145711, 153380, 264442, 291422, 528884, 582844, 661105, 728555, 1322210, 1457110, 2644420, 2914220, 53368571, 106737142, 213474284, 266842855, 533685710, 1014002849, 1067371420, 2028005698, 4056011396, 5070014245, 10140028490, 20280056980]

約数ペア:

[(1, 20280056980), (2, 10140028490), (4, 5070014245), (5, 4056011396), (10, 2028005698), (19, 1067371420), (20, 1014002849), (38, 533685710), (76, 266842855), (95, 213474284), (190, 106737142), (380, 53368571), (6959, 2914220), (7669, 2644420), (13918, 1457110), (15338, 1322210), (27836, 728555), (30676, 661105), (34795, 582844), (38345, 528884), (69590, 291422), (76690, 264442), (132221, 153380), (139180, 145711)]