65191640

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{313}}^1$

素因数の和:492

約数の個数: 64

約数和(自身を含む): 151925760

約数和(自身を除く): 86734120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 127, 164, 205, 254, 313, 328, 410, 508, 626, 635, 820, 1016, 1252, 1270, 1565, 1640, 2504, 2540, 3130, 5080, 5207, 6260, 10414, 12520, 12833, 20828, 25666, 26035, 39751, 41656, 51332, 52070, 64165, 79502, 102664, 104140, 128330, 159004, 198755, 208280, 256660, 318008, 397510, 513320, 795020, 1590040, 1629791, 3259582, 6519164, 8148955, 13038328, 16297910, 32595820, 65191640]

約数ペア:

[(1, 65191640), (2, 32595820), (4, 16297910), (5, 13038328), (8, 8148955), (10, 6519164), (20, 3259582), (40, 1629791), (41, 1590040), (82, 795020), (127, 513320), (164, 397510), (205, 318008), (254, 256660), (313, 208280), (328, 198755), (410, 159004), (508, 128330), (626, 104140), (635, 102664), (820, 79502), (1016, 64165), (1252, 52070), (1270, 51332), (1565, 41656), (1640, 39751), (2504, 26035), (2540, 25666), (3130, 20828), (5080, 12833), (5207, 12520), (6260, 10414)]