639770554

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{1031}}^1\times {\mathrm{18251}}^1$

素因数の和:19301

約数の個数: 16

約数和(自身を含む): 1017147456

約数和(自身を除く): 377376902

約数列:

[1, 2, 17, 34, 1031, 2062, 17527, 18251, 35054, 36502, 310267, 620534, 18816781, 37633562, 319885277, 639770554]

約数ペア:

[(1, 639770554), (2, 319885277), (17, 37633562), (34, 18816781), (1031, 620534), (2062, 310267), (17527, 36502), (18251, 35054)]