2539880720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{187861}}^1$

素因数の和:187900

約数の個数: 60

約数和(自身を含む): 6394446756

約数和(自身を除く): 3854566036

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 169, 208, 260, 338, 520, 676, 845, 1040, 1352, 1690, 2704, 3380, 6760, 13520, 187861, 375722, 751444, 939305, 1502888, 1878610, 2442193, 3005776, 3757220, 4884386, 7514440, 9768772, 12210965, 15028880, 19537544, 24421930, 31748509, 39075088, 48843860, 63497018, 97687720, 126994036, 158742545, 195375440, 253988072, 317485090, 507976144, 634970180, 1269940360, 2539880720]

約数ペア:

[(1, 2539880720), (2, 1269940360), (4, 634970180), (5, 507976144), (8, 317485090), (10, 253988072), (13, 195375440), (16, 158742545), (20, 126994036), (26, 97687720), (40, 63497018), (52, 48843860), (65, 39075088), (80, 31748509), (104, 24421930), (130, 19537544), (169, 15028880), (208, 12210965), (260, 9768772), (338, 7514440), (520, 4884386), (676, 3757220), (845, 3005776), (1040, 2442193), (1352, 1878610), (1690, 1502888), (2704, 939305), (3380, 751444), (6760, 375722), (13520, 187861)]