209510785

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{173}}^1\times {\mathrm{227}}^1$

素因数の和:513

約数の個数: 32

約数和(自身を含む): 279925632

約数和(自身を除く): 70414847

約数列:

[1, 5, 11, 55, 97, 173, 227, 485, 865, 1067, 1135, 1903, 2497, 5335, 9515, 12485, 16781, 22019, 39271, 83905, 110095, 184591, 196355, 242209, 431981, 922955, 1211045, 2159905, 3809287, 19046435, 41902157, 209510785]

約数ペア:

[(1, 209510785), (5, 41902157), (11, 19046435), (55, 3809287), (97, 2159905), (173, 1211045), (227, 922955), (485, 431981), (865, 242209), (1067, 196355), (1135, 184591), (1903, 110095), (2497, 83905), (5335, 39271), (9515, 22019), (12485, 16781)]