390280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{887}}^1$

素因数の和:909

約数の個数: 32

約数和(自身を含む): 959040

約数和(自身を除く): 568760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 887, 1774, 3548, 4435, 7096, 8870, 9757, 17740, 19514, 35480, 39028, 48785, 78056, 97570, 195140, 390280]

約数ペア:

[(1, 390280), (2, 195140), (4, 97570), (5, 78056), (8, 48785), (10, 39028), (11, 35480), (20, 19514), (22, 17740), (40, 9757), (44, 8870), (55, 7096), (88, 4435), (110, 3548), (220, 1774), (440, 887)]