20156890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{3299}}^1$

素因数の和:3366

約数の個数: 32

約数和(自身を含む): 39916800

約数和(自身を除く): 19759910

約数列:

[1, 2, 5, 10, 13, 26, 47, 65, 94, 130, 235, 470, 611, 1222, 3055, 3299, 6110, 6598, 16495, 32990, 42887, 85774, 155053, 214435, 310106, 428870, 775265, 1550530, 2015689, 4031378, 10078445, 20156890]

約数ペア:

[(1, 20156890), (2, 10078445), (5, 4031378), (10, 2015689), (13, 1550530), (26, 775265), (47, 428870), (65, 310106), (94, 214435), (130, 155053), (235, 85774), (470, 42887), (611, 32990), (1222, 16495), (3055, 6598), (3299, 6110)]