261566985

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{563}}^1\times {\mathrm{659}}^1$

素因数の和:1277

約数の個数: 32

約数和(自身を含む): 428820480

約数和(自身を除く): 167253495

約数列:

[1, 3, 5, 15, 47, 141, 235, 563, 659, 705, 1689, 1977, 2815, 3295, 8445, 9885, 26461, 30973, 79383, 92919, 132305, 154865, 371017, 396915, 464595, 1113051, 1855085, 5565255, 17437799, 52313397, 87188995, 261566985]

約数ペア:

[(1, 261566985), (3, 87188995), (5, 52313397), (15, 17437799), (47, 5565255), (141, 1855085), (235, 1113051), (563, 464595), (659, 396915), (705, 371017), (1689, 154865), (1977, 132305), (2815, 92919), (3295, 79383), (8445, 30973), (9885, 26461)]