28179528

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{499}}^1$

素因数の和:702

約数の個数: 64

約数和(自身を含む): 76440000

約数和(自身を除く): 48260472

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 181, 312, 362, 499, 543, 724, 998, 1086, 1448, 1497, 1996, 2172, 2353, 2994, 3992, 4344, 4706, 5988, 6487, 7059, 9412, 11976, 12974, 14118, 18824, 19461, 25948, 28236, 38922, 51896, 56472, 77844, 90319, 155688, 180638, 270957, 361276, 541914, 722552, 1083828, 1174147, 2167656, 2348294, 3522441, 4696588, 7044882, 9393176, 14089764, 28179528]

約数ペア:

[(1, 28179528), (2, 14089764), (3, 9393176), (4, 7044882), (6, 4696588), (8, 3522441), (12, 2348294), (13, 2167656), (24, 1174147), (26, 1083828), (39, 722552), (52, 541914), (78, 361276), (104, 270957), (156, 180638), (181, 155688), (312, 90319), (362, 77844), (499, 56472), (543, 51896), (724, 38922), (998, 28236), (1086, 25948), (1448, 19461), (1497, 18824), (1996, 14118), (2172, 12974), (2353, 11976), (2994, 9412), (3992, 7059), (4344, 6487), (4706, 5988)]