38978992

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2797}}^1$

素因数の和:2885

約数の個数: 40

約数和(自身を含む): 82574576

約数和(自身を除く): 43595584

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 67, 104, 134, 208, 268, 536, 871, 1072, 1742, 2797, 3484, 5594, 6968, 11188, 13936, 22376, 36361, 44752, 72722, 145444, 187399, 290888, 374798, 581776, 749596, 1499192, 2436187, 2998384, 4872374, 9744748, 19489496, 38978992]

約数ペア:

[(1, 38978992), (2, 19489496), (4, 9744748), (8, 4872374), (13, 2998384), (16, 2436187), (26, 1499192), (52, 749596), (67, 581776), (104, 374798), (134, 290888), (208, 187399), (268, 145444), (536, 72722), (871, 44752), (1072, 36361), (1742, 22376), (2797, 13936), (3484, 11188), (5594, 6968)]