1209980

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{599}}^1$

素因数の和:709

約数の個数: 24

約数和(自身を含む): 2570400

約数和(自身を除く): 1360420

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 599, 1010, 1198, 2020, 2396, 2995, 5990, 11980, 60499, 120998, 241996, 302495, 604990, 1209980]

約数ペア:

[(1, 1209980), (2, 604990), (4, 302495), (5, 241996), (10, 120998), (20, 60499), (101, 11980), (202, 5990), (404, 2995), (505, 2396), (599, 2020), (1010, 1198)]