91691890

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{84121}}^1$

素因数の和:84237

約数の個数: 16

約数和(自身を含む): 166561560

約数和(自身を除く): 74869670

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 84121, 168242, 420605, 841210, 9169189, 18338378, 45845945, 91691890]

約数ペア:

[(1, 91691890), (2, 45845945), (5, 18338378), (10, 9169189), (109, 841210), (218, 420605), (545, 168242), (1090, 84121)]