1280221605

素因数分解:

$3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{243157}}^1$

素因数の和:243187

約数の個数: 40

約数和(自身を含む): 2471457912

約数和(自身を除く): 1191236307

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 81, 117, 135, 195, 351, 405, 585, 1053, 1755, 5265, 243157, 729471, 1215785, 2188413, 3161041, 3647355, 6565239, 9483123, 10942065, 15805205, 19695717, 28449369, 32826195, 47415615, 85348107, 98478585, 142246845, 256044321, 426740535, 1280221605]

約数ペア:

[(1, 1280221605), (3, 426740535), (5, 256044321), (9, 142246845), (13, 98478585), (15, 85348107), (27, 47415615), (39, 32826195), (45, 28449369), (65, 19695717), (81, 15805205), (117, 10942065), (135, 9483123), (195, 6565239), (351, 3647355), (405, 3161041), (585, 2188413), (1053, 1215785), (1755, 729471), (5265, 243157)]