20457980968

素因数分解:

$2^3\times {\mathrm{191}}^1\times {\mathrm{449}}^1\times {\mathrm{29819}}^1$

素因数の和:30465

約数の個数: 32

約数和(自身を含む): 38646720000

約数和(自身を除く): 18188739032

約数列:

[1, 2, 4, 8, 191, 382, 449, 764, 898, 1528, 1796, 3592, 29819, 59638, 85759, 119276, 171518, 238552, 343036, 686072, 5695429, 11390858, 13388731, 22781716, 26777462, 45563432, 53554924, 107109848, 2557247621, 5114495242, 10228990484, 20457980968]

約数ペア:

[(1, 20457980968), (2, 10228990484), (4, 5114495242), (8, 2557247621), (191, 107109848), (382, 53554924), (449, 45563432), (764, 26777462), (898, 22781716), (1528, 13388731), (1796, 11390858), (3592, 5695429), (29819, 686072), (59638, 343036), (85759, 238552), (119276, 171518)]