349764440

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{419}}^1\times {\mathrm{509}}^1$

素因数の和:980

約数の個数: 64

約数和(自身を含む): 809676000

約数和(自身を除く): 459911560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 419, 509, 820, 838, 1018, 1640, 1676, 2036, 2095, 2545, 3352, 4072, 4190, 5090, 8380, 10180, 16760, 17179, 20360, 20869, 34358, 41738, 68716, 83476, 85895, 104345, 137432, 166952, 171790, 208690, 213271, 343580, 417380, 426542, 687160, 834760, 853084, 1066355, 1706168, 2132710, 4265420, 8530840, 8744111, 17488222, 34976444, 43720555, 69952888, 87441110, 174882220, 349764440]

約数ペア:

[(1, 349764440), (2, 174882220), (4, 87441110), (5, 69952888), (8, 43720555), (10, 34976444), (20, 17488222), (40, 8744111), (41, 8530840), (82, 4265420), (164, 2132710), (205, 1706168), (328, 1066355), (410, 853084), (419, 834760), (509, 687160), (820, 426542), (838, 417380), (1018, 343580), (1640, 213271), (1676, 208690), (2036, 171790), (2095, 166952), (2545, 137432), (3352, 104345), (4072, 85895), (4190, 83476), (5090, 68716), (8380, 41738), (10180, 34358), (16760, 20869), (17179, 20360)]