25780820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{433}}^1$

素因数の和:684

約数の個数: 48

約数和(自身を含む): 58694160

約数和(自身を除く): 32913340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 229, 260, 433, 458, 866, 916, 1145, 1732, 2165, 2290, 2977, 4330, 4580, 5629, 5954, 8660, 11258, 11908, 14885, 22516, 28145, 29770, 56290, 59540, 99157, 112580, 198314, 396628, 495785, 991570, 1289041, 1983140, 2578082, 5156164, 6445205, 12890410, 25780820]

約数ペア:

[(1, 25780820), (2, 12890410), (4, 6445205), (5, 5156164), (10, 2578082), (13, 1983140), (20, 1289041), (26, 991570), (52, 495785), (65, 396628), (130, 198314), (229, 112580), (260, 99157), (433, 59540), (458, 56290), (866, 29770), (916, 28145), (1145, 22516), (1732, 14885), (2165, 11908), (2290, 11258), (2977, 8660), (4330, 5954), (4580, 5629)]