40743980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{599}}^1$

素因数の和:806

約数の個数: 48

約数和(自身を含む): 90720000

約数和(自身を除く): 49976020

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 179, 190, 358, 380, 599, 716, 895, 1198, 1790, 2396, 2995, 3401, 3580, 5990, 6802, 11381, 11980, 13604, 17005, 22762, 34010, 45524, 56905, 68020, 107221, 113810, 214442, 227620, 428884, 536105, 1072210, 2037199, 2144420, 4074398, 8148796, 10185995, 20371990, 40743980]

約数ペア:

[(1, 40743980), (2, 20371990), (4, 10185995), (5, 8148796), (10, 4074398), (19, 2144420), (20, 2037199), (38, 1072210), (76, 536105), (95, 428884), (179, 227620), (190, 214442), (358, 113810), (380, 107221), (599, 68020), (716, 56905), (895, 45524), (1198, 34010), (1790, 22762), (2396, 17005), (2995, 13604), (3401, 11980), (3580, 11381), (5990, 6802)]