217428580

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{313}}^1\times {\mathrm{739}}^1$

素因数の和:1108

約数の個数: 48

約数和(自身を含む): 468437760

約数和(自身を除く): 251009180

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 313, 470, 626, 739, 940, 1252, 1478, 1565, 2956, 3130, 3695, 6260, 7390, 14711, 14780, 29422, 34733, 58844, 69466, 73555, 138932, 147110, 173665, 231307, 294220, 347330, 462614, 694660, 925228, 1156535, 2313070, 4626140, 10871429, 21742858, 43485716, 54357145, 108714290, 217428580]

約数ペア:

[(1, 217428580), (2, 108714290), (4, 54357145), (5, 43485716), (10, 21742858), (20, 10871429), (47, 4626140), (94, 2313070), (188, 1156535), (235, 925228), (313, 694660), (470, 462614), (626, 347330), (739, 294220), (940, 231307), (1252, 173665), (1478, 147110), (1565, 138932), (2956, 73555), (3130, 69466), (3695, 58844), (6260, 34733), (7390, 29422), (14711, 14780)]