81268018

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{139}}^1\times {\mathrm{199}}^1$

素因数の和:466

約数の個数: 32

約数和(自身を含む): 134064000

約数和(自身を除く): 52795982

約数列:

[1, 2, 13, 26, 113, 139, 199, 226, 278, 398, 1469, 1807, 2587, 2938, 3614, 5174, 15707, 22487, 27661, 31414, 44974, 55322, 204191, 292331, 359593, 408382, 584662, 719186, 3125693, 6251386, 40634009, 81268018]

約数ペア:

[(1, 81268018), (2, 40634009), (13, 6251386), (26, 3125693), (113, 719186), (139, 584662), (199, 408382), (226, 359593), (278, 292331), (398, 204191), (1469, 55322), (1807, 44974), (2587, 31414), (2938, 27661), (3614, 22487), (5174, 15707)]