1310996900

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{304883}}^1$

素因数の和:304940

約数の個数: 36

約数和(自身を含む): 2911032432

約数和(自身を除く): 1600035532

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 172, 215, 430, 860, 1075, 2150, 4300, 304883, 609766, 1219532, 1524415, 3048830, 6097660, 7622075, 13109969, 15244150, 26219938, 30488300, 52439876, 65549845, 131099690, 262199380, 327749225, 655498450, 1310996900]

約数ペア:

[(1, 1310996900), (2, 655498450), (4, 327749225), (5, 262199380), (10, 131099690), (20, 65549845), (25, 52439876), (43, 30488300), (50, 26219938), (86, 15244150), (100, 13109969), (172, 7622075), (215, 6097660), (430, 3048830), (860, 1524415), (1075, 1219532), (2150, 609766), (4300, 304883)]