131321200

素因数分解:

$2^4\times 5^2\times {\mathrm{328303}}^1$

素因数の和:328321

約数の個数: 30

約数和(自身を含む): 315500144

約数和(自身を除く): 184178944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 328303, 656606, 1313212, 1641515, 2626424, 3283030, 5252848, 6566060, 8207575, 13132120, 16415150, 26264240, 32830300, 65660600, 131321200]

約数ペア:

[(1, 131321200), (2, 65660600), (4, 32830300), (5, 26264240), (8, 16415150), (10, 13132120), (16, 8207575), (20, 6566060), (25, 5252848), (40, 3283030), (50, 2626424), (80, 1641515), (100, 1313212), (200, 656606), (400, 328303)]