19951820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{20359}}^1$

素因数の和:20382

約数の個数: 36

約数和(自身を含む): 48741840

約数和(自身を除く): 28790020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 20359, 40718, 81436, 101795, 142513, 203590, 285026, 407180, 570052, 712565, 997591, 1425130, 1995182, 2850260, 3990364, 4987955, 9975910, 19951820]

約数ペア:

[(1, 19951820), (2, 9975910), (4, 4987955), (5, 3990364), (7, 2850260), (10, 1995182), (14, 1425130), (20, 997591), (28, 712565), (35, 570052), (49, 407180), (70, 285026), (98, 203590), (140, 142513), (196, 101795), (245, 81436), (490, 40718), (980, 20359)]