521200

素因数分解:

$2^4\times 5^2\times {\mathrm{1303}}^1$

素因数の和:1321

約数の個数: 30

約数和(自身を含む): 1253144

約数和(自身を除く): 731944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 1303, 2606, 5212, 6515, 10424, 13030, 20848, 26060, 32575, 52120, 65150, 104240, 130300, 260600, 521200]

約数ペア:

[(1, 521200), (2, 260600), (4, 130300), (5, 104240), (8, 65150), (10, 52120), (16, 32575), (20, 26060), (25, 20848), (40, 13030), (50, 10424), (80, 6515), (100, 5212), (200, 2606), (400, 1303)]