27687920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{337}}^1$

素因数の和:442

約数の個数: 80

約数和(自身を含む): 70412160

約数和(自身を除く): 42724240

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 79, 80, 104, 130, 158, 208, 260, 316, 337, 395, 520, 632, 674, 790, 1027, 1040, 1264, 1348, 1580, 1685, 2054, 2696, 3160, 3370, 4108, 4381, 5135, 5392, 6320, 6740, 8216, 8762, 10270, 13480, 16432, 17524, 20540, 21905, 26623, 26960, 35048, 41080, 43810, 53246, 70096, 82160, 87620, 106492, 133115, 175240, 212984, 266230, 346099, 350480, 425968, 532460, 692198, 1064920, 1384396, 1730495, 2129840, 2768792, 3460990, 5537584, 6921980, 13843960, 27687920]

約数ペア:

[(1, 27687920), (2, 13843960), (4, 6921980), (5, 5537584), (8, 3460990), (10, 2768792), (13, 2129840), (16, 1730495), (20, 1384396), (26, 1064920), (40, 692198), (52, 532460), (65, 425968), (79, 350480), (80, 346099), (104, 266230), (130, 212984), (158, 175240), (208, 133115), (260, 106492), (316, 87620), (337, 82160), (395, 70096), (520, 53246), (632, 43810), (674, 41080), (790, 35048), (1027, 26960), (1040, 26623), (1264, 21905), (1348, 20540), (1580, 17524), (1685, 16432), (2054, 13480), (2696, 10270), (3160, 8762), (3370, 8216), (4108, 6740), (4381, 6320), (5135, 5392)]