211939975

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{199}}^1$

素因数の和:364

約数の個数: 48

約数和(自身を含む): 296856000

約数和(自身を除く): 84916025

約数列:

[1, 5, 13, 25, 29, 65, 113, 145, 199, 325, 377, 565, 725, 995, 1469, 1885, 2587, 2825, 3277, 4975, 5771, 7345, 9425, 12935, 16385, 22487, 28855, 36725, 42601, 64675, 75023, 81925, 112435, 144275, 213005, 292331, 375115, 562175, 652123, 1065025, 1461655, 1875575, 3260615, 7308275, 8477599, 16303075, 42387995, 211939975]

約数ペア:

[(1, 211939975), (5, 42387995), (13, 16303075), (25, 8477599), (29, 7308275), (65, 3260615), (113, 1875575), (145, 1461655), (199, 1065025), (325, 652123), (377, 562175), (565, 375115), (725, 292331), (995, 213005), (1469, 144275), (1885, 112435), (2587, 81925), (2825, 75023), (3277, 64675), (4975, 42601), (5771, 36725), (7345, 28855), (9425, 22487), (12935, 16385)]