20905030

素因数分解:

$2^1\times 5^1\times {\mathrm{631}}^1\times {\mathrm{3313}}^1$

素因数の和:3951

約数の個数: 16

約数和(自身を含む): 37700064

約数和(自身を除く): 16795034

約数列:

[1, 2, 5, 10, 631, 1262, 3155, 3313, 6310, 6626, 16565, 33130, 2090503, 4181006, 10452515, 20905030]

約数ペア:

[(1, 20905030), (2, 10452515), (5, 4181006), (10, 2090503), (631, 33130), (1262, 16565), (3155, 6626), (3313, 6310)]