21976440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4259}}^1$

素因数の和:4316

約数の個数: 64

約数和(自身を含む): 67478400

約数和(自身を除く): 45501960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 120, 129, 172, 215, 258, 344, 430, 516, 645, 860, 1032, 1290, 1720, 2580, 4259, 5160, 8518, 12777, 17036, 21295, 25554, 34072, 42590, 51108, 63885, 85180, 102216, 127770, 170360, 183137, 255540, 366274, 511080, 549411, 732548, 915685, 1098822, 1465096, 1831370, 2197644, 2747055, 3662740, 4395288, 5494110, 7325480, 10988220, 21976440]

約数ペア:

[(1, 21976440), (2, 10988220), (3, 7325480), (4, 5494110), (5, 4395288), (6, 3662740), (8, 2747055), (10, 2197644), (12, 1831370), (15, 1465096), (20, 1098822), (24, 915685), (30, 732548), (40, 549411), (43, 511080), (60, 366274), (86, 255540), (120, 183137), (129, 170360), (172, 127770), (215, 102216), (258, 85180), (344, 63885), (430, 51108), (516, 42590), (645, 34072), (860, 25554), (1032, 21295), (1290, 17036), (1720, 12777), (2580, 8518), (4259, 5160)]