30831955

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1511}}^1$

素因数の和:1587

約数の個数: 32

約数和(自身を含む): 47029248

約数和(自身を除く): 16197293

約数列:

[1, 5, 7, 11, 35, 53, 55, 77, 265, 371, 385, 583, 1511, 1855, 2915, 4081, 7555, 10577, 16621, 20405, 52885, 80083, 83105, 116347, 400415, 560581, 581735, 880913, 2802905, 4404565, 6166391, 30831955]

約数ペア:

[(1, 30831955), (5, 6166391), (7, 4404565), (11, 2802905), (35, 880913), (53, 581735), (55, 560581), (77, 400415), (265, 116347), (371, 83105), (385, 80083), (583, 52885), (1511, 20405), (1855, 16621), (2915, 10577), (4081, 7555)]