20542445

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{233}}^1$

素因数の和:485

約数の個数: 32

約数和(自身を含む): 31000320

約数和(自身を除く): 10457875

約数列:

[1, 5, 7, 11, 35, 55, 77, 229, 233, 385, 1145, 1165, 1603, 1631, 2519, 2563, 8015, 8155, 12595, 12815, 17633, 17941, 53357, 88165, 89705, 266785, 373499, 586927, 1867495, 2934635, 4108489, 20542445]

約数ペア:

[(1, 20542445), (5, 4108489), (7, 2934635), (11, 1867495), (35, 586927), (55, 373499), (77, 266785), (229, 89705), (233, 88165), (385, 53357), (1145, 17941), (1165, 17633), (1603, 12815), (1631, 12595), (2519, 8155), (2563, 8015)]