81325585

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{1213}}^1$

素因数の和:1305

約数の個数: 32

約数和(自身を含む): 113280768

約数和(自身を除く): 31955183

約数列:

[1, 5, 11, 23, 53, 55, 115, 253, 265, 583, 1213, 1219, 1265, 2915, 6065, 6095, 13343, 13409, 27899, 64289, 66715, 67045, 139495, 306889, 321445, 707179, 1478647, 1534445, 3535895, 7393235, 16265117, 81325585]

約数ペア:

[(1, 81325585), (5, 16265117), (11, 7393235), (23, 3535895), (53, 1534445), (55, 1478647), (115, 707179), (253, 321445), (265, 306889), (583, 139495), (1213, 67045), (1219, 66715), (1265, 64289), (2915, 27899), (6065, 13409), (6095, 13343)]