39989840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1567}}^1$

素因数の和:1620

約数の個数: 80

約数和(自身を含む): 104993280

約数和(自身を除く): 65003440

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 29, 40, 44, 55, 58, 80, 88, 110, 116, 145, 176, 220, 232, 290, 319, 440, 464, 580, 638, 880, 1160, 1276, 1567, 1595, 2320, 2552, 3134, 3190, 5104, 6268, 6380, 7835, 12536, 12760, 15670, 17237, 25072, 25520, 31340, 34474, 45443, 62680, 68948, 86185, 90886, 125360, 137896, 172370, 181772, 227215, 275792, 344740, 363544, 454430, 499873, 689480, 727088, 908860, 999746, 1378960, 1817720, 1999492, 2499365, 3635440, 3998984, 4998730, 7997968, 9997460, 19994920, 39989840]

約数ペア:

[(1, 39989840), (2, 19994920), (4, 9997460), (5, 7997968), (8, 4998730), (10, 3998984), (11, 3635440), (16, 2499365), (20, 1999492), (22, 1817720), (29, 1378960), (40, 999746), (44, 908860), (55, 727088), (58, 689480), (80, 499873), (88, 454430), (110, 363544), (116, 344740), (145, 275792), (176, 227215), (220, 181772), (232, 172370), (290, 137896), (319, 125360), (440, 90886), (464, 86185), (580, 68948), (638, 62680), (880, 45443), (1160, 34474), (1276, 31340), (1567, 25520), (1595, 25072), (2320, 17237), (2552, 15670), (3134, 12760), (3190, 12536), (5104, 7835), (6268, 6380)]