20064400

素因数分解:

$2^4\times 5^2\times {\mathrm{103}}^1\times {\mathrm{487}}^1$

素因数の和:608

約数の個数: 60

約数和(自身を含む): 48772672

約数和(自身を除く): 28708272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 103, 200, 206, 400, 412, 487, 515, 824, 974, 1030, 1648, 1948, 2060, 2435, 2575, 3896, 4120, 4870, 5150, 7792, 8240, 9740, 10300, 12175, 19480, 20600, 24350, 38960, 41200, 48700, 50161, 97400, 100322, 194800, 200644, 250805, 401288, 501610, 802576, 1003220, 1254025, 2006440, 2508050, 4012880, 5016100, 10032200, 20064400]

約数ペア:

[(1, 20064400), (2, 10032200), (4, 5016100), (5, 4012880), (8, 2508050), (10, 2006440), (16, 1254025), (20, 1003220), (25, 802576), (40, 501610), (50, 401288), (80, 250805), (100, 200644), (103, 194800), (200, 100322), (206, 97400), (400, 50161), (412, 48700), (487, 41200), (515, 38960), (824, 24350), (974, 20600), (1030, 19480), (1648, 12175), (1948, 10300), (2060, 9740), (2435, 8240), (2575, 7792), (3896, 5150), (4120, 4870)]