13880080

素因数分解:

$2^4\times 5^1\times {\mathrm{173501}}^1$

素因数の和:173514

約数の個数: 20

約数和(自身を含む): 32271372

約数和(自身を除く): 18391292

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 173501, 347002, 694004, 867505, 1388008, 1735010, 2776016, 3470020, 6940040, 13880080]

約数ペア:

[(1, 13880080), (2, 6940040), (4, 3470020), (5, 2776016), (8, 1735010), (10, 1388008), (16, 867505), (20, 694004), (40, 347002), (80, 173501)]