19917400

素因数分解:

$2^3\times 5^2\times {\mathrm{53}}^1\times {\mathrm{1879}}^1$

素因数の和:1948

約数の個数: 48

約数和(自身を含む): 47206800

約数和(自身を除く): 27289400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 53, 100, 106, 200, 212, 265, 424, 530, 1060, 1325, 1879, 2120, 2650, 3758, 5300, 7516, 9395, 10600, 15032, 18790, 37580, 46975, 75160, 93950, 99587, 187900, 199174, 375800, 398348, 497935, 796696, 995870, 1991740, 2489675, 3983480, 4979350, 9958700, 19917400]

約数ペア:

[(1, 19917400), (2, 9958700), (4, 4979350), (5, 3983480), (8, 2489675), (10, 1991740), (20, 995870), (25, 796696), (40, 497935), (50, 398348), (53, 375800), (100, 199174), (106, 187900), (200, 99587), (212, 93950), (265, 75160), (424, 46975), (530, 37580), (1060, 18790), (1325, 15032), (1879, 10600), (2120, 9395), (2650, 7516), (3758, 5300)]