90863440

素因数分解:

$2^4\times 5^1\times {\mathrm{409}}^1\times {\mathrm{2777}}^1$

素因数の和:3199

約数の個数: 40

約数和(自身を含む): 211850280

約数和(自身を除く): 120986840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 409, 818, 1636, 2045, 2777, 3272, 4090, 5554, 6544, 8180, 11108, 13885, 16360, 22216, 27770, 32720, 44432, 55540, 111080, 222160, 1135793, 2271586, 4543172, 5678965, 9086344, 11357930, 18172688, 22715860, 45431720, 90863440]

約数ペア:

[(1, 90863440), (2, 45431720), (4, 22715860), (5, 18172688), (8, 11357930), (10, 9086344), (16, 5678965), (20, 4543172), (40, 2271586), (80, 1135793), (409, 222160), (818, 111080), (1636, 55540), (2045, 44432), (2777, 32720), (3272, 27770), (4090, 22216), (5554, 16360), (6544, 13885), (8180, 11108)]