13905680

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1721}}^1$

素因数の和:1835

約数の個数: 40

約数和(自身を含む): 32669784

約数和(自身を除く): 18764104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1616, 1721, 2020, 3442, 4040, 6884, 8080, 8605, 13768, 17210, 27536, 34420, 68840, 137680, 173821, 347642, 695284, 869105, 1390568, 1738210, 2781136, 3476420, 6952840, 13905680]

約数ペア:

[(1, 13905680), (2, 6952840), (4, 3476420), (5, 2781136), (8, 1738210), (10, 1390568), (16, 869105), (20, 695284), (40, 347642), (80, 173821), (101, 137680), (202, 68840), (404, 34420), (505, 27536), (808, 17210), (1010, 13768), (1616, 8605), (1721, 8080), (2020, 6884), (3442, 4040)]