391975990

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{179}}^1$

素因数の和:350

約数の個数: 96

約数和(自身を含む): 853221600

約数和(自身を除く): 461245610

約数列:

[1, 2, 5, 7, 10, 14, 35, 41, 49, 70, 82, 98, 109, 179, 205, 218, 245, 287, 358, 410, 490, 545, 574, 763, 895, 1090, 1253, 1435, 1526, 1790, 2009, 2506, 2870, 3815, 4018, 4469, 5341, 6265, 7339, 7630, 8771, 8938, 10045, 10682, 12530, 14678, 17542, 19511, 20090, 22345, 26705, 31283, 36695, 39022, 43855, 44690, 51373, 53410, 62566, 73390, 87710, 97555, 102746, 136577, 156415, 195110, 218981, 256865, 273154, 312830, 359611, 437962, 513730, 682885, 719222, 799951, 956039, 1094905, 1365770, 1599902, 1798055, 1912078, 2189810, 3596110, 3999755, 4780195, 5599657, 7999510, 9560390, 11199314, 27998285, 39197599, 55996570, 78395198, 195987995, 391975990]

約数ペア:

[(1, 391975990), (2, 195987995), (5, 78395198), (7, 55996570), (10, 39197599), (14, 27998285), (35, 11199314), (41, 9560390), (49, 7999510), (70, 5599657), (82, 4780195), (98, 3999755), (109, 3596110), (179, 2189810), (205, 1912078), (218, 1798055), (245, 1599902), (287, 1365770), (358, 1094905), (410, 956039), (490, 799951), (545, 719222), (574, 682885), (763, 513730), (895, 437962), (1090, 359611), (1253, 312830), (1435, 273154), (1526, 256865), (1790, 218981), (2009, 195110), (2506, 156415), (2870, 136577), (3815, 102746), (4018, 97555), (4469, 87710), (5341, 73390), (6265, 62566), (7339, 53410), (7630, 51373), (8771, 44690), (8938, 43855), (10045, 39022), (10682, 36695), (12530, 31283), (14678, 26705), (17542, 22345), (19511, 20090)]