4006021940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1997}}^1\times {\mathrm{5279}}^1$

素因数の和:7304

約数の個数: 48

約数和(自身を含む): 8861529600

約数和(自身を除く): 4855507660

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 1997, 3994, 5279, 7988, 9985, 10558, 19970, 21116, 26395, 37943, 39940, 52790, 75886, 100301, 105580, 151772, 189715, 200602, 379430, 401204, 501505, 758860, 1003010, 2006020, 10542163, 21084326, 42168652, 52710815, 105421630, 200301097, 210843260, 400602194, 801204388, 1001505485, 2003010970, 4006021940]

約数ペア:

[(1, 4006021940), (2, 2003010970), (4, 1001505485), (5, 801204388), (10, 400602194), (19, 210843260), (20, 200301097), (38, 105421630), (76, 52710815), (95, 42168652), (190, 21084326), (380, 10542163), (1997, 2006020), (3994, 1003010), (5279, 758860), (7988, 501505), (9985, 401204), (10558, 379430), (19970, 200602), (21116, 189715), (26395, 151772), (37943, 105580), (39940, 100301), (52790, 75886)]