639730105

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1\times {\mathrm{2467}}^1$

素因数の和:2749

約数の個数: 32

約数和(自身を含む): 909803520

約数和(自身を除く): 270073415

約数列:

[1, 5, 7, 31, 35, 155, 217, 239, 1085, 1195, 1673, 2467, 7409, 8365, 12335, 17269, 37045, 51863, 76477, 86345, 259315, 382385, 535339, 589613, 2676695, 2948065, 4127291, 18278003, 20636455, 91390015, 127946021, 639730105]

約数ペア:

[(1, 639730105), (5, 127946021), (7, 91390015), (31, 20636455), (35, 18278003), (155, 4127291), (217, 2948065), (239, 2676695), (1085, 589613), (1195, 535339), (1673, 382385), (2467, 259315), (7409, 86345), (8365, 76477), (12335, 51863), (17269, 37045)]