77957990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{8971}}^1$

素因数の和:9068

約数の個数: 32

約数和(自身を含む): 155036160

約数和(自身を除く): 77078170

約数列:

[1, 2, 5, 10, 11, 22, 55, 79, 110, 158, 395, 790, 869, 1738, 4345, 8690, 8971, 17942, 44855, 89710, 98681, 197362, 493405, 708709, 986810, 1417418, 3543545, 7087090, 7795799, 15591598, 38978995, 77957990]

約数ペア:

[(1, 77957990), (2, 38978995), (5, 15591598), (10, 7795799), (11, 7087090), (22, 3543545), (55, 1417418), (79, 986810), (110, 708709), (158, 493405), (395, 197362), (790, 98681), (869, 89710), (1738, 44855), (4345, 17942), (8690, 8971)]