2631590

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{653}}^1$

素因数の和:704

約数の個数: 32

約数和(自身を含む): 5273856

約数和(自身を除く): 2642266

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 653, 806, 1306, 2015, 3265, 4030, 6530, 8489, 16978, 20243, 40486, 42445, 84890, 101215, 202430, 263159, 526318, 1315795, 2631590]

約数ペア:

[(1, 2631590), (2, 1315795), (5, 526318), (10, 263159), (13, 202430), (26, 101215), (31, 84890), (62, 42445), (65, 40486), (130, 20243), (155, 16978), (310, 8489), (403, 6530), (653, 4030), (806, 3265), (1306, 2015)]