81977786

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{137}}^1\times {\mathrm{461}}^1$

素因数の和:670

約数の個数: 32

約数和(自身を含む): 137712960

約数和(自身を除く): 55735174

約数列:

[1, 2, 11, 22, 59, 118, 137, 274, 461, 649, 922, 1298, 1507, 3014, 5071, 8083, 10142, 16166, 27199, 54398, 63157, 88913, 126314, 177826, 299189, 598378, 694727, 1389454, 3726263, 7452526, 40988893, 81977786]

約数ペア:

[(1, 81977786), (2, 40988893), (11, 7452526), (22, 3726263), (59, 1389454), (118, 694727), (137, 598378), (274, 299189), (461, 177826), (649, 126314), (922, 88913), (1298, 63157), (1507, 54398), (3014, 27199), (5071, 16166), (8083, 10142)]