20340280

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{22109}}^1$

素因数の和:22143

約数の個数: 32

約数和(自身を含む): 47757600

約数和(自身を除く): 27417320

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 22109, 44218, 88436, 110545, 176872, 221090, 442180, 508507, 884360, 1017014, 2034028, 2542535, 4068056, 5085070, 10170140, 20340280]

約数ペア:

[(1, 20340280), (2, 10170140), (4, 5085070), (5, 4068056), (8, 2542535), (10, 2034028), (20, 1017014), (23, 884360), (40, 508507), (46, 442180), (92, 221090), (115, 176872), (184, 110545), (230, 88436), (460, 44218), (920, 22109)]