257690524

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^3\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:180

約数の個数: 96

約数和(自身を含む): 575769600

約数和(自身を除く): 318079076

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 59, 71, 91, 118, 142, 169, 182, 236, 284, 338, 364, 413, 497, 676, 767, 826, 923, 994, 1183, 1534, 1652, 1846, 1988, 2197, 2366, 3068, 3692, 4189, 4394, 4732, 5369, 6461, 8378, 8788, 9971, 10738, 11999, 12922, 15379, 16756, 19942, 21476, 23998, 25844, 29323, 30758, 39884, 47996, 54457, 58646, 61516, 69797, 83993, 108914, 117292, 129623, 139594, 155987, 167986, 217828, 259246, 279188, 311974, 335972, 381199, 518492, 623948, 707941, 762398, 907361, 1091909, 1415882, 1524796, 1814722, 2183818, 2831764, 3629444, 4367636, 4955587, 9203233, 9911174, 18406466, 19822348, 36812932, 64422631, 128845262, 257690524]

約数ペア:

[(1, 257690524), (2, 128845262), (4, 64422631), (7, 36812932), (13, 19822348), (14, 18406466), (26, 9911174), (28, 9203233), (52, 4955587), (59, 4367636), (71, 3629444), (91, 2831764), (118, 2183818), (142, 1814722), (169, 1524796), (182, 1415882), (236, 1091909), (284, 907361), (338, 762398), (364, 707941), (413, 623948), (497, 518492), (676, 381199), (767, 335972), (826, 311974), (923, 279188), (994, 259246), (1183, 217828), (1534, 167986), (1652, 155987), (1846, 139594), (1988, 129623), (2197, 117292), (2366, 108914), (3068, 83993), (3692, 69797), (4189, 61516), (4394, 58646), (4732, 54457), (5369, 47996), (6461, 39884), (8378, 30758), (8788, 29323), (9971, 25844), (10738, 23998), (11999, 21476), (12922, 19942), (15379, 16756)]