2678780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{10303}}^1$

素因数の和:10325

約数の個数: 24

約数和(自身を含む): 6058752

約数和(自身を除く): 3379972

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 10303, 20606, 41212, 51515, 103030, 133939, 206060, 267878, 535756, 669695, 1339390, 2678780]

約数ペア:

[(1, 2678780), (2, 1339390), (4, 669695), (5, 535756), (10, 267878), (13, 206060), (20, 133939), (26, 103030), (52, 51515), (65, 41212), (130, 20606), (260, 10303)]