25605520

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{3169}}^1$

素因数の和:3283

約数の個数: 40

約数和(自身を含む): 60141240

約数和(自身を除く): 34535720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1616, 2020, 3169, 4040, 6338, 8080, 12676, 15845, 25352, 31690, 50704, 63380, 126760, 253520, 320069, 640138, 1280276, 1600345, 2560552, 3200690, 5121104, 6401380, 12802760, 25605520]

約数ペア:

[(1, 25605520), (2, 12802760), (4, 6401380), (5, 5121104), (8, 3200690), (10, 2560552), (16, 1600345), (20, 1280276), (40, 640138), (80, 320069), (101, 253520), (202, 126760), (404, 63380), (505, 50704), (808, 31690), (1010, 25352), (1616, 15845), (2020, 12676), (3169, 8080), (4040, 6338)]