28670668

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1$

素因数の和:274

約数の個数: 48

約数和(自身を含む): 56137536

約数和(自身を除く): 27466868

約数列:

[1, 2, 4, 13, 26, 52, 53, 101, 103, 106, 202, 206, 212, 404, 412, 689, 1313, 1339, 1378, 2626, 2678, 2756, 5252, 5353, 5356, 5459, 10403, 10706, 10918, 20806, 21412, 21836, 41612, 69589, 70967, 135239, 139178, 141934, 270478, 278356, 283868, 540956, 551359, 1102718, 2205436, 7167667, 14335334, 28670668]

約数ペア:

[(1, 28670668), (2, 14335334), (4, 7167667), (13, 2205436), (26, 1102718), (52, 551359), (53, 540956), (101, 283868), (103, 278356), (106, 270478), (202, 141934), (206, 139178), (212, 135239), (404, 70967), (412, 69589), (689, 41612), (1313, 21836), (1339, 21412), (1378, 20806), (2626, 10918), (2678, 10706), (2756, 10403), (5252, 5459), (5353, 5356)]