1330960

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1$

素因数の和:271

約数の個数: 40

約数和(自身を含む): 3142656

約数和(自身を除く): 1811696

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 131, 254, 262, 508, 524, 635, 655, 1016, 1048, 1270, 1310, 2032, 2096, 2540, 2620, 5080, 5240, 10160, 10480, 16637, 33274, 66548, 83185, 133096, 166370, 266192, 332740, 665480, 1330960]

約数ペア:

[(1, 1330960), (2, 665480), (4, 332740), (5, 266192), (8, 166370), (10, 133096), (16, 83185), (20, 66548), (40, 33274), (80, 16637), (127, 10480), (131, 10160), (254, 5240), (262, 5080), (508, 2620), (524, 2540), (635, 2096), (655, 2032), (1016, 1310), (1048, 1270)]