686474960

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1\times {\mathrm{2011}}^1$

素因数の和:2292

約数の個数: 80

約数和(自身を含む): 1697516352

約数和(自身を除く): 1011041392

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 251, 272, 340, 502, 680, 1004, 1255, 1360, 2008, 2011, 2510, 4016, 4022, 4267, 5020, 8044, 8534, 10040, 10055, 16088, 17068, 20080, 20110, 21335, 32176, 34136, 34187, 40220, 42670, 68272, 68374, 80440, 85340, 136748, 160880, 170680, 170935, 273496, 341360, 341870, 504761, 546992, 683740, 1009522, 1367480, 2019044, 2523805, 2734960, 4038088, 5047610, 8076176, 8580937, 10095220, 17161874, 20190440, 34323748, 40380880, 42904685, 68647496, 85809370, 137294992, 171618740, 343237480, 686474960]

約数ペア:

[(1, 686474960), (2, 343237480), (4, 171618740), (5, 137294992), (8, 85809370), (10, 68647496), (16, 42904685), (17, 40380880), (20, 34323748), (34, 20190440), (40, 17161874), (68, 10095220), (80, 8580937), (85, 8076176), (136, 5047610), (170, 4038088), (251, 2734960), (272, 2523805), (340, 2019044), (502, 1367480), (680, 1009522), (1004, 683740), (1255, 546992), (1360, 504761), (2008, 341870), (2011, 341360), (2510, 273496), (4016, 170935), (4022, 170680), (4267, 160880), (5020, 136748), (8044, 85340), (8534, 80440), (10040, 68374), (10055, 68272), (16088, 42670), (17068, 40220), (20080, 34187), (20110, 34136), (21335, 32176)]