420665

素因数分解:

$5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{101}}^1$

素因数の和:137

約数の個数: 24

約数和(自身を含む): 627912

約数和(自身を除く): 207247

約数列:

[1, 5, 7, 17, 35, 49, 85, 101, 119, 245, 505, 595, 707, 833, 1717, 3535, 4165, 4949, 8585, 12019, 24745, 60095, 84133, 420665]

約数ペア:

[(1, 420665), (5, 84133), (7, 60095), (17, 24745), (35, 12019), (49, 8585), (85, 4949), (101, 4165), (119, 3535), (245, 1717), (505, 833), (595, 707)]