256472425

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:151

約数の個数: 72

約数和(自身を含む): 380163168

約数和(自身を除く): 123690743

約数列:

[1, 5, 11, 23, 25, 41, 43, 55, 115, 205, 215, 253, 275, 451, 473, 529, 575, 943, 989, 1025, 1075, 1265, 1763, 2255, 2365, 2645, 4715, 4945, 5819, 6325, 8815, 10373, 10879, 11275, 11825, 13225, 19393, 21689, 22747, 23575, 24725, 29095, 40549, 44075, 51865, 54395, 96965, 108445, 113735, 145475, 202745, 238579, 250217, 259325, 271975, 446039, 484825, 542225, 568675, 932627, 1013725, 1192895, 1251085, 2230195, 4663135, 5964475, 6255425, 10258897, 11150975, 23315675, 51294485, 256472425]

約数ペア:

[(1, 256472425), (5, 51294485), (11, 23315675), (23, 11150975), (25, 10258897), (41, 6255425), (43, 5964475), (55, 4663135), (115, 2230195), (205, 1251085), (215, 1192895), (253, 1013725), (275, 932627), (451, 568675), (473, 542225), (529, 484825), (575, 446039), (943, 271975), (989, 259325), (1025, 250217), (1075, 238579), (1265, 202745), (1763, 145475), (2255, 113735), (2365, 108445), (2645, 96965), (4715, 54395), (4945, 51865), (5819, 44075), (6325, 40549), (8815, 29095), (10373, 24725), (10879, 23575), (11275, 22747), (11825, 21689), (13225, 19393)]