20737168

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1523}}^1$

素因数の和:1591

約数の個数: 40

約数和(自身を含む): 43086528

約数和(自身を除く): 22349360

約数列:

[1, 2, 4, 8, 16, 23, 37, 46, 74, 92, 148, 184, 296, 368, 592, 851, 1523, 1702, 3046, 3404, 6092, 6808, 12184, 13616, 24368, 35029, 56351, 70058, 112702, 140116, 225404, 280232, 450808, 560464, 901616, 1296073, 2592146, 5184292, 10368584, 20737168]

約数ペア:

[(1, 20737168), (2, 10368584), (4, 5184292), (8, 2592146), (16, 1296073), (23, 901616), (37, 560464), (46, 450808), (74, 280232), (92, 225404), (148, 140116), (184, 112702), (296, 70058), (368, 56351), (592, 35029), (851, 24368), (1523, 13616), (1702, 12184), (3046, 6808), (3404, 6092)]