25561040

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{7793}}^1$

素因数の和:7847

約数の個数: 40

約数和(自身を含む): 60886728

約数和(自身を除く): 35325688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 7793, 15586, 31172, 38965, 62344, 77930, 124688, 155860, 311720, 319513, 623440, 639026, 1278052, 1597565, 2556104, 3195130, 5112208, 6390260, 12780520, 25561040]

約数ペア:

[(1, 25561040), (2, 12780520), (4, 6390260), (5, 5112208), (8, 3195130), (10, 2556104), (16, 1597565), (20, 1278052), (40, 639026), (41, 623440), (80, 319513), (82, 311720), (164, 155860), (205, 124688), (328, 77930), (410, 62344), (656, 38965), (820, 31172), (1640, 15586), (3280, 7793)]