28170896

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{811}}^1$

素因数の和:999

約数の個数: 40

約数和(自身を含む): 59204544

約数和(自身を除く): 31033648

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 167, 208, 334, 668, 811, 1336, 1622, 2171, 2672, 3244, 4342, 6488, 8684, 10543, 12976, 17368, 21086, 34736, 42172, 84344, 135437, 168688, 270874, 541748, 1083496, 1760681, 2166992, 3521362, 7042724, 14085448, 28170896]

約数ペア:

[(1, 28170896), (2, 14085448), (4, 7042724), (8, 3521362), (13, 2166992), (16, 1760681), (26, 1083496), (52, 541748), (104, 270874), (167, 168688), (208, 135437), (334, 84344), (668, 42172), (811, 34736), (1336, 21086), (1622, 17368), (2171, 12976), (2672, 10543), (3244, 8684), (4342, 6488)]