820060

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{313}}^1$

素因数の和:453

約数の個数: 24

約数和(自身を含む): 1740816

約数和(自身を除く): 920756

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 313, 524, 626, 655, 1252, 1310, 1565, 2620, 3130, 6260, 41003, 82006, 164012, 205015, 410030, 820060]

約数ペア:

[(1, 820060), (2, 410030), (4, 205015), (5, 164012), (10, 82006), (20, 41003), (131, 6260), (262, 3130), (313, 2620), (524, 1565), (626, 1310), (655, 1252)]