215178605

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1\times {\mathrm{401}}^1$

素因数の和:589

約数の個数: 32

約数和(自身を含む): 281335680

約数和(自身を除く): 66157075

約数列:

[1, 5, 17, 59, 85, 107, 295, 401, 535, 1003, 1819, 2005, 5015, 6313, 6817, 9095, 23659, 31565, 34085, 42907, 107321, 118295, 214535, 402203, 536605, 729419, 2011015, 2531513, 3647095, 12657565, 43035721, 215178605]

約数ペア:

[(1, 215178605), (5, 43035721), (17, 12657565), (59, 3647095), (85, 2531513), (107, 2011015), (295, 729419), (401, 536605), (535, 402203), (1003, 214535), (1819, 118295), (2005, 107321), (5015, 42907), (6313, 34085), (6817, 31565), (9095, 23659)]