156665860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{1549}}^1$

素因数の和:1960

約数の個数: 48

約数和(自身を含む): 355446000

約数和(自身を除く): 198780140

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 389, 778, 1549, 1556, 1945, 3098, 3890, 5057, 6196, 7745, 7780, 10114, 15490, 20137, 20228, 25285, 30980, 40274, 50570, 80548, 100685, 101140, 201370, 402740, 602561, 1205122, 2410244, 3012805, 6025610, 7833293, 12051220, 15666586, 31333172, 39166465, 78332930, 156665860]

約数ペア:

[(1, 156665860), (2, 78332930), (4, 39166465), (5, 31333172), (10, 15666586), (13, 12051220), (20, 7833293), (26, 6025610), (52, 3012805), (65, 2410244), (130, 1205122), (260, 602561), (389, 402740), (778, 201370), (1549, 101140), (1556, 100685), (1945, 80548), (3098, 50570), (3890, 40274), (5057, 30980), (6196, 25285), (7745, 20228), (7780, 20137), (10114, 15490)]