81307890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{903421}}^1$

素因数の和:903434

約数の個数: 24

約数和(自身を含む): 211400748

約数和(自身を除く): 130092858

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 903421, 1806842, 2710263, 4517105, 5420526, 8130789, 9034210, 13551315, 16261578, 27102630, 40653945, 81307890]

約数ペア:

[(1, 81307890), (2, 40653945), (3, 27102630), (5, 16261578), (6, 13551315), (9, 9034210), (10, 8130789), (15, 5420526), (18, 4517105), (30, 2710263), (45, 1806842), (90, 903421)]