20159824

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{541}}^1$

素因数の和:703

約数の個数: 40

約数和(自身を含む): 41736168

約数和(自身を除く): 21576344

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 137, 272, 274, 541, 548, 1082, 1096, 2164, 2192, 2329, 4328, 4658, 8656, 9197, 9316, 18394, 18632, 36788, 37264, 73576, 74117, 147152, 148234, 296468, 592936, 1185872, 1259989, 2519978, 5039956, 10079912, 20159824]

約数ペア:

[(1, 20159824), (2, 10079912), (4, 5039956), (8, 2519978), (16, 1259989), (17, 1185872), (34, 592936), (68, 296468), (136, 148234), (137, 147152), (272, 74117), (274, 73576), (541, 37264), (548, 36788), (1082, 18632), (1096, 18394), (2164, 9316), (2192, 9197), (2329, 8656), (4328, 4658)]