393287675

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{421}}^1$

素因数の和:564

約数の個数: 48

約数和(自身を含む): 552583680

約数和(自身を除く): 159296005

約数列:

[1, 5, 11, 25, 43, 55, 79, 215, 275, 395, 421, 473, 869, 1075, 1975, 2105, 2365, 3397, 4345, 4631, 10525, 11825, 16985, 18103, 21725, 23155, 33259, 37367, 84925, 90515, 115775, 166295, 186835, 199133, 365849, 452575, 831475, 934175, 995665, 1430137, 1829245, 4978325, 7150685, 9146225, 15731507, 35753425, 78657535, 393287675]

約数ペア:

[(1, 393287675), (5, 78657535), (11, 35753425), (25, 15731507), (43, 9146225), (55, 7150685), (79, 4978325), (215, 1829245), (275, 1430137), (395, 995665), (421, 934175), (473, 831475), (869, 452575), (1075, 365849), (1975, 199133), (2105, 186835), (2365, 166295), (3397, 115775), (4345, 90515), (4631, 84925), (10525, 37367), (11825, 33259), (16985, 23155), (18103, 21725)]