39691880

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{2357}}^1$

素因数の和:2789

約数の個数: 32

約数和(自身を含む): 89556840

約数和(自身を除く): 49864960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 842, 1684, 2105, 2357, 3368, 4210, 4714, 8420, 9428, 11785, 16840, 18856, 23570, 47140, 94280, 992297, 1984594, 3969188, 4961485, 7938376, 9922970, 19845940, 39691880]

約数ペア:

[(1, 39691880), (2, 19845940), (4, 9922970), (5, 7938376), (8, 4961485), (10, 3969188), (20, 1984594), (40, 992297), (421, 94280), (842, 47140), (1684, 23570), (2105, 18856), (2357, 16840), (3368, 11785), (4210, 9428), (4714, 8420)]