18989200

素因数分解:

$2^4\times 5^2\times {\mathrm{29}}^1\times {\mathrm{1637}}^1$

素因数の和:1684

約数の個数: 60

約数和(自身を含む): 47223540

約数和(自身を除く): 28234340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 29, 40, 50, 58, 80, 100, 116, 145, 200, 232, 290, 400, 464, 580, 725, 1160, 1450, 1637, 2320, 2900, 3274, 5800, 6548, 8185, 11600, 13096, 16370, 26192, 32740, 40925, 47473, 65480, 81850, 94946, 130960, 163700, 189892, 237365, 327400, 379784, 474730, 654800, 759568, 949460, 1186825, 1898920, 2373650, 3797840, 4747300, 9494600, 18989200]

約数ペア:

[(1, 18989200), (2, 9494600), (4, 4747300), (5, 3797840), (8, 2373650), (10, 1898920), (16, 1186825), (20, 949460), (25, 759568), (29, 654800), (40, 474730), (50, 379784), (58, 327400), (80, 237365), (100, 189892), (116, 163700), (145, 130960), (200, 94946), (232, 81850), (290, 65480), (400, 47473), (464, 40925), (580, 32740), (725, 26192), (1160, 16370), (1450, 13096), (1637, 11600), (2320, 8185), (2900, 6548), (3274, 5800)]