89402890

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{82021}}^1$

素因数の和:82137

約数の個数: 16

約数和(自身を含む): 162403560

約数和(自身を除く): 73000670

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 82021, 164042, 410105, 820210, 8940289, 17880578, 44701445, 89402890]

約数ペア:

[(1, 89402890), (2, 44701445), (5, 17880578), (10, 8940289), (109, 820210), (218, 410105), (545, 164042), (1090, 82021)]