678045140

素因数分解:

$2^2\times 5^1\times {\mathrm{1319}}^1\times {\mathrm{25703}}^1$

素因数の和:27031

約数の個数: 24

約数和(自身を含む): 1425029760

約数和(自身を除く): 746984620

約数列:

[1, 2, 4, 5, 10, 20, 1319, 2638, 5276, 6595, 13190, 25703, 26380, 51406, 102812, 128515, 257030, 514060, 33902257, 67804514, 135609028, 169511285, 339022570, 678045140]

約数ペア:

[(1, 678045140), (2, 339022570), (4, 169511285), (5, 135609028), (10, 67804514), (20, 33902257), (1319, 514060), (2638, 257030), (5276, 128515), (6595, 102812), (13190, 51406), (25703, 26380)]