826675940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{21121}}^1$

素因数の和:21252

約数の個数: 48

約数和(自身を含む): 1845217920

約数和(自身を除く): 1018541980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 103, 190, 206, 380, 412, 515, 1030, 1957, 2060, 3914, 7828, 9785, 19570, 21121, 39140, 42242, 84484, 105605, 211210, 401299, 422420, 802598, 1605196, 2006495, 2175463, 4012990, 4350926, 8025980, 8701852, 10877315, 21754630, 41333797, 43509260, 82667594, 165335188, 206668985, 413337970, 826675940]

約数ペア:

[(1, 826675940), (2, 413337970), (4, 206668985), (5, 165335188), (10, 82667594), (19, 43509260), (20, 41333797), (38, 21754630), (76, 10877315), (95, 8701852), (103, 8025980), (190, 4350926), (206, 4012990), (380, 2175463), (412, 2006495), (515, 1605196), (1030, 802598), (1957, 422420), (2060, 401299), (3914, 211210), (7828, 105605), (9785, 84484), (19570, 42242), (21121, 39140)]