2686657280

素因数分解:

$2^8\times 5^1\times {\mathrm{79}}^1\times {\mathrm{163}}^2$

素因数の和:426

約数の個数: 108

約数和(自身を含む): 6557070240

約数和(自身を除く): 3870412960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 128, 158, 160, 163, 256, 316, 320, 326, 395, 632, 640, 652, 790, 815, 1264, 1280, 1304, 1580, 1630, 2528, 2608, 3160, 3260, 5056, 5216, 6320, 6520, 10112, 10432, 12640, 12877, 13040, 20224, 20864, 25280, 25754, 26080, 26569, 41728, 50560, 51508, 52160, 53138, 64385, 101120, 103016, 104320, 106276, 128770, 132845, 206032, 208640, 212552, 257540, 265690, 412064, 425104, 515080, 531380, 824128, 850208, 1030160, 1062760, 1648256, 1700416, 2060320, 2098951, 2125520, 3296512, 3400832, 4120640, 4197902, 4251040, 6801664, 8241280, 8395804, 8502080, 10494755, 16482560, 16791608, 17004160, 20989510, 33583216, 34008320, 41979020, 67166432, 83958040, 134332864, 167916080, 268665728, 335832160, 537331456, 671664320, 1343328640, 2686657280]

約数ペア:

[(1, 2686657280), (2, 1343328640), (4, 671664320), (5, 537331456), (8, 335832160), (10, 268665728), (16, 167916080), (20, 134332864), (32, 83958040), (40, 67166432), (64, 41979020), (79, 34008320), (80, 33583216), (128, 20989510), (158, 17004160), (160, 16791608), (163, 16482560), (256, 10494755), (316, 8502080), (320, 8395804), (326, 8241280), (395, 6801664), (632, 4251040), (640, 4197902), (652, 4120640), (790, 3400832), (815, 3296512), (1264, 2125520), (1280, 2098951), (1304, 2060320), (1580, 1700416), (1630, 1648256), (2528, 1062760), (2608, 1030160), (3160, 850208), (3260, 824128), (5056, 531380), (5216, 515080), (6320, 425104), (6520, 412064), (10112, 265690), (10432, 257540), (12640, 212552), (12877, 208640), (13040, 206032), (20224, 132845), (20864, 128770), (25280, 106276), (25754, 104320), (26080, 103016), (26569, 101120), (41728, 64385), (50560, 53138), (51508, 52160)]