989140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{137}}^1$

素因数の和:184

約数の個数: 36

約数和(自身を含む): 2208276

約数和(自身を除く): 1219136

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 137, 190, 274, 361, 380, 548, 685, 722, 1370, 1444, 1805, 2603, 2740, 3610, 5206, 7220, 10412, 13015, 26030, 49457, 52060, 98914, 197828, 247285, 494570, 989140]

約数ペア:

[(1, 989140), (2, 494570), (4, 247285), (5, 197828), (10, 98914), (19, 52060), (20, 49457), (38, 26030), (76, 13015), (95, 10412), (137, 7220), (190, 5206), (274, 3610), (361, 2740), (380, 2603), (548, 1805), (685, 1444), (722, 1370)]