40912720

素因数分解:

$2^4\times 5^1\times {\mathrm{511409}}^1$

素因数の和:511422

約数の個数: 20

約数和(自身を含む): 95122260

約数和(自身を除く): 54209540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 511409, 1022818, 2045636, 2557045, 4091272, 5114090, 8182544, 10228180, 20456360, 40912720]

約数ペア:

[(1, 40912720), (2, 20456360), (4, 10228180), (5, 8182544), (8, 5114090), (10, 4091272), (16, 2557045), (20, 2045636), (40, 1022818), (80, 511409)]