251286868

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{307}}^1$

素因数の和:413

約数の個数: 96

約数和(自身を含む): 556351488

約数和(自身を除く): 305064620

約数列:

[1, 2, 4, 7, 14, 23, 28, 31, 41, 46, 62, 82, 92, 124, 161, 164, 217, 287, 307, 322, 434, 574, 614, 644, 713, 868, 943, 1148, 1228, 1271, 1426, 1886, 2149, 2542, 2852, 3772, 4298, 4991, 5084, 6601, 7061, 8596, 8897, 9517, 9982, 12587, 13202, 14122, 17794, 19034, 19964, 25174, 26404, 28244, 29233, 35588, 38068, 49427, 50348, 58466, 66619, 88109, 98854, 116932, 133238, 176218, 197708, 204631, 218891, 266476, 289501, 352436, 390197, 409262, 437782, 579002, 780394, 818524, 875564, 1158004, 1532237, 1560788, 2026507, 2731379, 3064474, 4053014, 5462758, 6128948, 8106028, 8974531, 10925516, 17949062, 35898124, 62821717, 125643434, 251286868]

約数ペア:

[(1, 251286868), (2, 125643434), (4, 62821717), (7, 35898124), (14, 17949062), (23, 10925516), (28, 8974531), (31, 8106028), (41, 6128948), (46, 5462758), (62, 4053014), (82, 3064474), (92, 2731379), (124, 2026507), (161, 1560788), (164, 1532237), (217, 1158004), (287, 875564), (307, 818524), (322, 780394), (434, 579002), (574, 437782), (614, 409262), (644, 390197), (713, 352436), (868, 289501), (943, 266476), (1148, 218891), (1228, 204631), (1271, 197708), (1426, 176218), (1886, 133238), (2149, 116932), (2542, 98854), (2852, 88109), (3772, 66619), (4298, 58466), (4991, 50348), (5084, 49427), (6601, 38068), (7061, 35588), (8596, 29233), (8897, 28244), (9517, 26404), (9982, 25174), (12587, 19964), (13202, 19034), (14122, 17794)]