257786638

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{52631}}^1$

素因数の和:52743

約数の個数: 16

約数和(自身を含む): 404213760

約数和(自身を除く): 146427122

約数列:

[1, 2, 31, 62, 79, 158, 2449, 4898, 52631, 105262, 1631561, 3263122, 4157849, 8315698, 128893319, 257786638]

約数ペア:

[(1, 257786638), (2, 128893319), (31, 8315698), (62, 4157849), (79, 3263122), (158, 1631561), (2449, 105262), (4898, 52631)]