28790840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{4259}}^1$

素因数の和:4296

約数の個数: 48

約数和(自身を含む): 70162200

約数和(自身を除く): 41371360

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 3380, 4259, 6760, 8518, 17036, 21295, 34072, 42590, 55367, 85180, 110734, 170360, 221468, 276835, 442936, 553670, 719771, 1107340, 1439542, 2214680, 2879084, 3598855, 5758168, 7197710, 14395420, 28790840]

約数ペア:

[(1, 28790840), (2, 14395420), (4, 7197710), (5, 5758168), (8, 3598855), (10, 2879084), (13, 2214680), (20, 1439542), (26, 1107340), (40, 719771), (52, 553670), (65, 442936), (104, 276835), (130, 221468), (169, 170360), (260, 110734), (338, 85180), (520, 55367), (676, 42590), (845, 34072), (1352, 21295), (1690, 17036), (3380, 8518), (4259, 6760)]