20417392

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{557}}^1$

素因数の和:673

約数の個数: 40

約数和(自身を含む): 41515200

約数和(自身を除く): 21097808

約数列:

[1, 2, 4, 8, 16, 29, 58, 79, 116, 158, 232, 316, 464, 557, 632, 1114, 1264, 2228, 2291, 4456, 4582, 8912, 9164, 16153, 18328, 32306, 36656, 44003, 64612, 88006, 129224, 176012, 258448, 352024, 704048, 1276087, 2552174, 5104348, 10208696, 20417392]

約数ペア:

[(1, 20417392), (2, 10208696), (4, 5104348), (8, 2552174), (16, 1276087), (29, 704048), (58, 352024), (79, 258448), (116, 176012), (158, 129224), (232, 88006), (316, 64612), (464, 44003), (557, 36656), (632, 32306), (1114, 18328), (1264, 16153), (2228, 9164), (2291, 8912), (4456, 4582)]