131320475

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{337}}^1$

素因数の和:480

約数の個数: 48

約数和(自身を含む): 193633440

約数和(自身を除く): 62312965

約数列:

[1, 5, 11, 13, 25, 55, 65, 109, 143, 275, 325, 337, 545, 715, 1199, 1417, 1685, 2725, 3575, 3707, 4381, 5995, 7085, 8425, 15587, 18535, 21905, 29975, 35425, 36733, 48191, 77935, 92675, 109525, 183665, 240955, 389675, 404063, 477529, 918325, 1204775, 2020315, 2387645, 5252819, 10101575, 11938225, 26264095, 131320475]

約数ペア:

[(1, 131320475), (5, 26264095), (11, 11938225), (13, 10101575), (25, 5252819), (55, 2387645), (65, 2020315), (109, 1204775), (143, 918325), (275, 477529), (325, 404063), (337, 389675), (545, 240955), (715, 183665), (1199, 109525), (1417, 92675), (1685, 77935), (2725, 48191), (3575, 36733), (3707, 35425), (4381, 29975), (5995, 21905), (7085, 18535), (8425, 15587)]