78445490

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{4639}}^1$

素因数の和:4754

約数の個数: 32

約数和(自身を含む): 150336000

約数和(自身を除く): 71890510

約数列:

[1, 2, 5, 10, 19, 38, 89, 95, 178, 190, 445, 890, 1691, 3382, 4639, 8455, 9278, 16910, 23195, 46390, 88141, 176282, 412871, 440705, 825742, 881410, 2064355, 4128710, 7844549, 15689098, 39222745, 78445490]

約数ペア:

[(1, 78445490), (2, 39222745), (5, 15689098), (10, 7844549), (19, 4128710), (38, 2064355), (89, 881410), (95, 825742), (178, 440705), (190, 412871), (445, 176282), (890, 88141), (1691, 46390), (3382, 23195), (4639, 16910), (8455, 9278)]