20255660

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{16603}}^1$

素因数の和:16673

約数の個数: 24

約数和(自身を含む): 43236816

約数和(自身を除く): 22981156

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 16603, 33206, 66412, 83015, 166030, 332060, 1012783, 2025566, 4051132, 5063915, 10127830, 20255660]

約数ペア:

[(1, 20255660), (2, 10127830), (4, 5063915), (5, 4051132), (10, 2025566), (20, 1012783), (61, 332060), (122, 166030), (244, 83015), (305, 66412), (610, 33206), (1220, 16603)]