20701580

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{60887}}^1$

素因数の和:60913

約数の個数: 24

約数和(自身を含む): 46031328

約数和(自身を除く): 25329748

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 60887, 121774, 243548, 304435, 608870, 1035079, 1217740, 2070158, 4140316, 5175395, 10350790, 20701580]

約数ペア:

[(1, 20701580), (2, 10350790), (4, 5175395), (5, 4140316), (10, 2070158), (17, 1217740), (20, 1035079), (34, 608870), (68, 304435), (85, 243548), (170, 121774), (340, 60887)]