261566312

素因数分解:

$2^3\times 7^3\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{173}}^1$

素因数の和:248

約数の個数: 128

約数和(自身を含む): 626400000

約数和(自身を除く): 364833688

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 29, 38, 49, 56, 58, 76, 98, 116, 133, 152, 173, 196, 203, 232, 266, 343, 346, 392, 406, 532, 551, 686, 692, 812, 931, 1064, 1102, 1211, 1372, 1384, 1421, 1624, 1862, 2204, 2422, 2744, 2842, 3287, 3724, 3857, 4408, 4844, 5017, 5684, 6517, 6574, 7448, 7714, 8477, 9688, 9947, 10034, 11368, 13034, 13148, 15428, 16954, 19894, 20068, 23009, 26068, 26296, 26999, 30856, 33908, 35119, 39788, 40136, 46018, 52136, 53998, 59339, 67816, 70238, 79576, 92036, 95323, 107996, 118678, 140476, 161063, 184072, 188993, 190646, 215992, 237356, 245833, 280952, 322126, 377986, 381292, 474712, 491666, 644252, 667261, 755972, 762584, 983332, 1127441, 1288504, 1334522, 1511944, 1720831, 1966664, 2254882, 2669044, 3441662, 4509764, 4670827, 5338088, 6883324, 9019528, 9341654, 13766648, 18683308, 32695789, 37366616, 65391578, 130783156, 261566312]

約数ペア:

[(1, 261566312), (2, 130783156), (4, 65391578), (7, 37366616), (8, 32695789), (14, 18683308), (19, 13766648), (28, 9341654), (29, 9019528), (38, 6883324), (49, 5338088), (56, 4670827), (58, 4509764), (76, 3441662), (98, 2669044), (116, 2254882), (133, 1966664), (152, 1720831), (173, 1511944), (196, 1334522), (203, 1288504), (232, 1127441), (266, 983332), (343, 762584), (346, 755972), (392, 667261), (406, 644252), (532, 491666), (551, 474712), (686, 381292), (692, 377986), (812, 322126), (931, 280952), (1064, 245833), (1102, 237356), (1211, 215992), (1372, 190646), (1384, 188993), (1421, 184072), (1624, 161063), (1862, 140476), (2204, 118678), (2422, 107996), (2744, 95323), (2842, 92036), (3287, 79576), (3724, 70238), (3857, 67816), (4408, 59339), (4844, 53998), (5017, 52136), (5684, 46018), (6517, 40136), (6574, 39788), (7448, 35119), (7714, 33908), (8477, 30856), (9688, 26999), (9947, 26296), (10034, 26068), (11368, 23009), (13034, 20068), (13148, 19894), (15428, 16954)]