18500120

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{1459}}^1$

素因数の和:1787

約数の個数: 32

約数和(自身を含む): 41785200

約数和(自身を除く): 23285080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 1268, 1459, 1585, 2536, 2918, 3170, 5836, 6340, 7295, 11672, 12680, 14590, 29180, 58360, 462503, 925006, 1850012, 2312515, 3700024, 4625030, 9250060, 18500120]

約数ペア:

[(1, 18500120), (2, 9250060), (4, 4625030), (5, 3700024), (8, 2312515), (10, 1850012), (20, 925006), (40, 462503), (317, 58360), (634, 29180), (1268, 14590), (1459, 12680), (1585, 11672), (2536, 7295), (2918, 6340), (3170, 5836)]