687969920

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{1237}}^1$

素因数の和:1346

約数の個数: 128

約数和(自身を含む): 1818374400

約数和(自身を除く): 1130404480

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 79, 80, 88, 110, 128, 158, 160, 176, 220, 316, 320, 352, 395, 440, 632, 640, 704, 790, 869, 880, 1237, 1264, 1408, 1580, 1738, 1760, 2474, 2528, 3160, 3476, 3520, 4345, 4948, 5056, 6185, 6320, 6952, 7040, 8690, 9896, 10112, 12370, 12640, 13607, 13904, 17380, 19792, 24740, 25280, 27214, 27808, 34760, 39584, 49480, 50560, 54428, 55616, 68035, 69520, 79168, 97723, 98960, 108856, 111232, 136070, 139040, 158336, 195446, 197920, 217712, 272140, 278080, 390892, 395840, 435424, 488615, 544280, 556160, 781784, 791680, 870848, 977230, 1074953, 1088560, 1563568, 1741696, 1954460, 2149906, 2177120, 3127136, 3908920, 4299812, 4354240, 5374765, 6254272, 7817840, 8599624, 8708480, 10749530, 12508544, 15635680, 17199248, 21499060, 31271360, 34398496, 42998120, 62542720, 68796992, 85996240, 137593984, 171992480, 343984960, 687969920]

約数ペア:

[(1, 687969920), (2, 343984960), (4, 171992480), (5, 137593984), (8, 85996240), (10, 68796992), (11, 62542720), (16, 42998120), (20, 34398496), (22, 31271360), (32, 21499060), (40, 17199248), (44, 15635680), (55, 12508544), (64, 10749530), (79, 8708480), (80, 8599624), (88, 7817840), (110, 6254272), (128, 5374765), (158, 4354240), (160, 4299812), (176, 3908920), (220, 3127136), (316, 2177120), (320, 2149906), (352, 1954460), (395, 1741696), (440, 1563568), (632, 1088560), (640, 1074953), (704, 977230), (790, 870848), (869, 791680), (880, 781784), (1237, 556160), (1264, 544280), (1408, 488615), (1580, 435424), (1738, 395840), (1760, 390892), (2474, 278080), (2528, 272140), (3160, 217712), (3476, 197920), (3520, 195446), (4345, 158336), (4948, 139040), (5056, 136070), (6185, 111232), (6320, 108856), (6952, 98960), (7040, 97723), (8690, 79168), (9896, 69520), (10112, 68035), (12370, 55616), (12640, 54428), (13607, 50560), (13904, 49480), (17380, 39584), (19792, 34760), (24740, 27808), (25280, 27214)]