397430650

素因数分解:

$2^1\times 5^2\times {\mathrm{103}}^1\times {\mathrm{77171}}^1$

素因数の和:77286

約数の個数: 24

約数和(自身を含む): 746407584

約数和(自身を除く): 348976934

約数列:

[1, 2, 5, 10, 25, 50, 103, 206, 515, 1030, 2575, 5150, 77171, 154342, 385855, 771710, 1929275, 3858550, 7948613, 15897226, 39743065, 79486130, 198715325, 397430650]

約数ペア:

[(1, 397430650), (2, 198715325), (5, 79486130), (10, 39743065), (25, 15897226), (50, 7948613), (103, 3858550), (206, 1929275), (515, 771710), (1030, 385855), (2575, 154342), (5150, 77171)]