257447856

素因数分解:

$2^4\times 3^1\times {\mathrm{41}}^1\times {\mathrm{130817}}^1$

素因数の和:130869

約数の個数: 40

約数和(自身を含む): 681300144

約数和(自身を除く): 423852288

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 41, 48, 82, 123, 164, 246, 328, 492, 656, 984, 1968, 130817, 261634, 392451, 523268, 784902, 1046536, 1569804, 2093072, 3139608, 5363497, 6279216, 10726994, 16090491, 21453988, 32180982, 42907976, 64361964, 85815952, 128723928, 257447856]

約数ペア:

[(1, 257447856), (2, 128723928), (3, 85815952), (4, 64361964), (6, 42907976), (8, 32180982), (12, 21453988), (16, 16090491), (24, 10726994), (41, 6279216), (48, 5363497), (82, 3139608), (123, 2093072), (164, 1569804), (246, 1046536), (328, 784902), (492, 523268), (656, 392451), (984, 261634), (1968, 130817)]