38649905

素因数分解:

$5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{421}}^1$

素因数の和:537

約数の個数: 32

約数和(自身を含む): 55258368

約数和(自身を除く): 16608463

約数列:

[1, 5, 7, 35, 43, 61, 215, 301, 305, 421, 427, 1505, 2105, 2135, 2623, 2947, 13115, 14735, 18103, 18361, 25681, 90515, 91805, 126721, 128405, 179767, 633605, 898835, 1104283, 5521415, 7729981, 38649905]

約数ペア:

[(1, 38649905), (5, 7729981), (7, 5521415), (35, 1104283), (43, 898835), (61, 633605), (215, 179767), (301, 128405), (305, 126721), (421, 91805), (427, 90515), (1505, 25681), (2105, 18361), (2135, 18103), (2623, 14735), (2947, 13115)]