31257138

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{349}}^1$

素因数の和:447

約数の個数: 64

約数和(自身を含む): 72576000

約数和(自身を除く): 41318862

約数列:

[1, 2, 3, 6, 11, 22, 23, 33, 46, 59, 66, 69, 118, 138, 177, 253, 349, 354, 506, 649, 698, 759, 1047, 1298, 1357, 1518, 1947, 2094, 2714, 3839, 3894, 4071, 7678, 8027, 8142, 11517, 14927, 16054, 20591, 23034, 24081, 29854, 41182, 44781, 48162, 61773, 88297, 89562, 123546, 176594, 226501, 264891, 453002, 473593, 529782, 679503, 947186, 1359006, 1420779, 2841558, 5209523, 10419046, 15628569, 31257138]

約数ペア:

[(1, 31257138), (2, 15628569), (3, 10419046), (6, 5209523), (11, 2841558), (22, 1420779), (23, 1359006), (33, 947186), (46, 679503), (59, 529782), (66, 473593), (69, 453002), (118, 264891), (138, 226501), (177, 176594), (253, 123546), (349, 89562), (354, 88297), (506, 61773), (649, 48162), (698, 44781), (759, 41182), (1047, 29854), (1298, 24081), (1357, 23034), (1518, 20591), (1947, 16054), (2094, 14927), (2714, 11517), (3839, 8142), (3894, 8027), (4071, 7678)]