440360

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1$

素因数の和:221

約数の個数: 32

約数和(自身を含む): 1009800

約数和(自身を除く): 569440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 109, 202, 218, 404, 436, 505, 545, 808, 872, 1010, 1090, 2020, 2180, 4040, 4360, 11009, 22018, 44036, 55045, 88072, 110090, 220180, 440360]

約数ペア:

[(1, 440360), (2, 220180), (4, 110090), (5, 88072), (8, 55045), (10, 44036), (20, 22018), (40, 11009), (101, 4360), (109, 4040), (202, 2180), (218, 2020), (404, 1090), (436, 1010), (505, 872), (545, 808)]