1335280

素因数分解:

$2^4\times 5^1\times {\mathrm{16691}}^1$

素因数の和:16704

約数の個数: 20

約数和(自身を含む): 3104712

約数和(自身を除く): 1769432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 16691, 33382, 66764, 83455, 133528, 166910, 267056, 333820, 667640, 1335280]

約数ペア:

[(1, 1335280), (2, 667640), (4, 333820), (5, 267056), (8, 166910), (10, 133528), (16, 83455), (20, 66764), (40, 33382), (80, 16691)]