256157240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{337049}}^1$

素因数の和:337079

約数の個数: 32

約数和(自身を含む): 606690000

約数和(自身を除く): 350532760

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 337049, 674098, 1348196, 1685245, 2696392, 3370490, 6403931, 6740980, 12807862, 13481960, 25615724, 32019655, 51231448, 64039310, 128078620, 256157240]

約数ペア:

[(1, 256157240), (2, 128078620), (4, 64039310), (5, 51231448), (8, 32019655), (10, 25615724), (19, 13481960), (20, 12807862), (38, 6740980), (40, 6403931), (76, 3370490), (95, 2696392), (152, 1685245), (190, 1348196), (380, 674098), (760, 337049)]