20248904

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{881}}^1$

素因数の和:930

約数の個数: 48

約数和(自身を含む): 43579620

約数和(自身を除く): 23330716

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 169, 221, 338, 442, 676, 881, 884, 1352, 1762, 1768, 2873, 3524, 5746, 7048, 11453, 11492, 14977, 22906, 22984, 29954, 45812, 59908, 91624, 119816, 148889, 194701, 297778, 389402, 595556, 778804, 1191112, 1557608, 2531113, 5062226, 10124452, 20248904]

約数ペア:

[(1, 20248904), (2, 10124452), (4, 5062226), (8, 2531113), (13, 1557608), (17, 1191112), (26, 778804), (34, 595556), (52, 389402), (68, 297778), (104, 194701), (136, 148889), (169, 119816), (221, 91624), (338, 59908), (442, 45812), (676, 29954), (881, 22984), (884, 22906), (1352, 14977), (1762, 11492), (1768, 11453), (2873, 7048), (3524, 5746)]