31884775

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1$

素因数の和:268

約数の個数: 48

約数和(自身を含む): 46872000

約数和(自身を除く): 14987225

約数列:

[1, 5, 13, 17, 25, 29, 65, 85, 145, 199, 221, 325, 377, 425, 493, 725, 995, 1105, 1885, 2465, 2587, 3383, 4975, 5525, 5771, 6409, 9425, 12325, 12935, 16915, 28855, 32045, 43979, 64675, 75023, 84575, 98107, 144275, 160225, 219895, 375115, 490535, 1099475, 1275391, 1875575, 2452675, 6376955, 31884775]

約数ペア:

[(1, 31884775), (5, 6376955), (13, 2452675), (17, 1875575), (25, 1275391), (29, 1099475), (65, 490535), (85, 375115), (145, 219895), (199, 160225), (221, 144275), (325, 98107), (377, 84575), (425, 75023), (493, 64675), (725, 43979), (995, 32045), (1105, 28855), (1885, 16915), (2465, 12935), (2587, 12325), (3383, 9425), (4975, 6409), (5525, 5771)]