12818780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1049}}^1$

素因数の和:1118

約数の個数: 48

約数和(自身を含む): 29635200

約数和(自身を除く): 16816420

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 47, 52, 65, 94, 130, 188, 235, 260, 470, 611, 940, 1049, 1222, 2098, 2444, 3055, 4196, 5245, 6110, 10490, 12220, 13637, 20980, 27274, 49303, 54548, 68185, 98606, 136370, 197212, 246515, 272740, 493030, 640939, 986060, 1281878, 2563756, 3204695, 6409390, 12818780]

約数ペア:

[(1, 12818780), (2, 6409390), (4, 3204695), (5, 2563756), (10, 1281878), (13, 986060), (20, 640939), (26, 493030), (47, 272740), (52, 246515), (65, 197212), (94, 136370), (130, 98606), (188, 68185), (235, 54548), (260, 49303), (470, 27274), (611, 20980), (940, 13637), (1049, 12220), (1222, 10490), (2098, 6110), (2444, 5245), (3055, 4196)]