1222780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4703}}^1$

素因数の和:4725

約数の個数: 24

約数和(自身を含む): 2765952

約数和(自身を除く): 1543172

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 4703, 9406, 18812, 23515, 47030, 61139, 94060, 122278, 244556, 305695, 611390, 1222780]

約数ペア:

[(1, 1222780), (2, 611390), (4, 305695), (5, 244556), (10, 122278), (13, 94060), (20, 61139), (26, 47030), (52, 23515), (65, 18812), (130, 9406), (260, 4703)]