200389910

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{408959}}^1$

素因数の和:408980

約数の個数: 24

約数和(自身を含む): 419592960

約数和(自身を除く): 219203050

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 408959, 817918, 2044795, 2862713, 4089590, 5725426, 14313565, 20038991, 28627130, 40077982, 100194955, 200389910]

約数ペア:

[(1, 200389910), (2, 100194955), (5, 40077982), (7, 28627130), (10, 20038991), (14, 14313565), (35, 5725426), (49, 4089590), (70, 2862713), (98, 2044795), (245, 817918), (490, 408959)]