201793640

素因数分解:

$2^3\times 5^1\times {\mathrm{1109}}^1\times {\mathrm{4549}}^1$

素因数の和:5669

約数の個数: 32

約数和(自身を含む): 454545000

約数和(自身を除く): 252751360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1109, 2218, 4436, 4549, 5545, 8872, 9098, 11090, 18196, 22180, 22745, 36392, 44360, 45490, 90980, 181960, 5044841, 10089682, 20179364, 25224205, 40358728, 50448410, 100896820, 201793640]

約数ペア:

[(1, 201793640), (2, 100896820), (4, 50448410), (5, 40358728), (8, 25224205), (10, 20179364), (20, 10089682), (40, 5044841), (1109, 181960), (2218, 90980), (4436, 45490), (4549, 44360), (5545, 36392), (8872, 22745), (9098, 22180), (11090, 18196)]