257139372

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1\times {\mathrm{379}}^1$

素因数の和:631

約数の個数: 96

約数和(自身を含む): 707857920

約数和(自身を除く): 450718548

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 41, 42, 82, 84, 123, 164, 197, 246, 287, 379, 394, 492, 574, 591, 758, 788, 861, 1137, 1148, 1182, 1379, 1516, 1722, 2274, 2364, 2653, 2758, 3444, 4137, 4548, 5306, 5516, 7959, 8077, 8274, 10612, 15539, 15918, 16154, 16548, 24231, 31078, 31836, 32308, 46617, 48462, 56539, 62156, 74663, 93234, 96924, 108773, 113078, 149326, 169617, 186468, 217546, 223989, 226156, 298652, 326319, 339234, 435092, 447978, 522641, 652638, 678468, 895956, 1045282, 1305276, 1567923, 2090564, 3061183, 3135846, 6122366, 6271692, 9183549, 12244732, 18367098, 21428281, 36734196, 42856562, 64284843, 85713124, 128569686, 257139372]

約数ペア:

[(1, 257139372), (2, 128569686), (3, 85713124), (4, 64284843), (6, 42856562), (7, 36734196), (12, 21428281), (14, 18367098), (21, 12244732), (28, 9183549), (41, 6271692), (42, 6122366), (82, 3135846), (84, 3061183), (123, 2090564), (164, 1567923), (197, 1305276), (246, 1045282), (287, 895956), (379, 678468), (394, 652638), (492, 522641), (574, 447978), (591, 435092), (758, 339234), (788, 326319), (861, 298652), (1137, 226156), (1148, 223989), (1182, 217546), (1379, 186468), (1516, 169617), (1722, 149326), (2274, 113078), (2364, 108773), (2653, 96924), (2758, 93234), (3444, 74663), (4137, 62156), (4548, 56539), (5306, 48462), (5516, 46617), (7959, 32308), (8077, 31836), (8274, 31078), (10612, 24231), (15539, 16548), (15918, 16154)]