890652820

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{653}}^1\times {\mathrm{1451}}^1$

素因数の和:2160

約数の個数: 48

約数和(自身を含む): 1914409728

約数和(自身を除く): 1023756908

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 653, 940, 1306, 1451, 2612, 2902, 3265, 5804, 6530, 7255, 13060, 14510, 29020, 30691, 61382, 68197, 122764, 136394, 153455, 272788, 306910, 340985, 613820, 681970, 947503, 1363940, 1895006, 3790012, 4737515, 9475030, 18950060, 44532641, 89065282, 178130564, 222663205, 445326410, 890652820]

約数ペア:

[(1, 890652820), (2, 445326410), (4, 222663205), (5, 178130564), (10, 89065282), (20, 44532641), (47, 18950060), (94, 9475030), (188, 4737515), (235, 3790012), (470, 1895006), (653, 1363940), (940, 947503), (1306, 681970), (1451, 613820), (2612, 340985), (2902, 306910), (3265, 272788), (5804, 153455), (6530, 136394), (7255, 122764), (13060, 68197), (14510, 61382), (29020, 30691)]