199465720

素因数分解:

$2^3\times 5^1\times {\mathrm{1213}}^1\times {\mathrm{4111}}^1$

素因数の和:5335

約数の個数: 32

約数和(自身を含む): 449277120

約数和(自身を除く): 249811400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1213, 2426, 4111, 4852, 6065, 8222, 9704, 12130, 16444, 20555, 24260, 32888, 41110, 48520, 82220, 164440, 4986643, 9973286, 19946572, 24933215, 39893144, 49866430, 99732860, 199465720]

約数ペア:

[(1, 199465720), (2, 99732860), (4, 49866430), (5, 39893144), (8, 24933215), (10, 19946572), (20, 9973286), (40, 4986643), (1213, 164440), (2426, 82220), (4111, 48520), (4852, 41110), (6065, 32888), (8222, 24260), (9704, 20555), (12130, 16444)]