20809480

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{22619}}^1$

素因数の和:22653

約数の個数: 32

約数和(自身を含む): 48859200

約数和(自身を除く): 28049720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 22619, 45238, 90476, 113095, 180952, 226190, 452380, 520237, 904760, 1040474, 2080948, 2601185, 4161896, 5202370, 10404740, 20809480]

約数ペア:

[(1, 20809480), (2, 10404740), (4, 5202370), (5, 4161896), (8, 2601185), (10, 2080948), (20, 1040474), (23, 904760), (40, 520237), (46, 452380), (92, 226190), (115, 180952), (184, 113095), (230, 90476), (460, 45238), (920, 22619)]