7684977025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{199}}^1\times {\mathrm{389}}^1$

素因数の和:647

約数の個数: 72

約数和(自身を含む): 11055096000

約数和(自身を除く): 3370118975

約数列:

[1, 5, 11, 19, 25, 55, 95, 199, 209, 275, 361, 389, 475, 995, 1045, 1805, 1945, 2189, 3781, 3971, 4279, 4975, 5225, 7391, 9025, 9725, 10945, 18905, 19855, 21395, 36955, 41591, 54725, 71839, 77411, 81301, 94525, 99275, 106975, 140429, 184775, 207955, 359195, 387055, 406505, 702145, 790229, 851521, 1039775, 1470809, 1544719, 1795975, 1935275, 2032525, 3510725, 3951145, 4257605, 7354045, 7723595, 16178899, 19755725, 21288025, 27945371, 36770225, 38617975, 80894495, 139726855, 307399081, 404472475, 698634275, 1536995405, 7684977025]

約数ペア:

[(1, 7684977025), (5, 1536995405), (11, 698634275), (19, 404472475), (25, 307399081), (55, 139726855), (95, 80894495), (199, 38617975), (209, 36770225), (275, 27945371), (361, 21288025), (389, 19755725), (475, 16178899), (995, 7723595), (1045, 7354045), (1805, 4257605), (1945, 3951145), (2189, 3510725), (3781, 2032525), (3971, 1935275), (4279, 1795975), (4975, 1544719), (5225, 1470809), (7391, 1039775), (9025, 851521), (9725, 790229), (10945, 702145), (18905, 406505), (19855, 387055), (21395, 359195), (36955, 207955), (41591, 184775), (54725, 140429), (71839, 106975), (77411, 99275), (81301, 94525)]