685880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1319}}^1$

素因数の和:1343

約数の個数: 32

約数和(自身を含む): 1663200

約数和(自身を除く): 977320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 1319, 2638, 5276, 6595, 10552, 13190, 17147, 26380, 34294, 52760, 68588, 85735, 137176, 171470, 342940, 685880]

約数ペア:

[(1, 685880), (2, 342940), (4, 171470), (5, 137176), (8, 85735), (10, 68588), (13, 52760), (20, 34294), (26, 26380), (40, 17147), (52, 13190), (65, 10552), (104, 6595), (130, 5276), (260, 2638), (520, 1319)]