20718060

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31391}}^1$

素因数の和:31414

約数の個数: 48

約数和(自身を含む): 63286272

約数和(自身を除く): 42568212

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 31391, 62782, 94173, 125564, 156955, 188346, 313910, 345301, 376692, 470865, 627820, 690602, 941730, 1035903, 1381204, 1726505, 1883460, 2071806, 3453010, 4143612, 5179515, 6906020, 10359030, 20718060]

約数ペア:

[(1, 20718060), (2, 10359030), (3, 6906020), (4, 5179515), (5, 4143612), (6, 3453010), (10, 2071806), (11, 1883460), (12, 1726505), (15, 1381204), (20, 1035903), (22, 941730), (30, 690602), (33, 627820), (44, 470865), (55, 376692), (60, 345301), (66, 313910), (110, 188346), (132, 156955), (165, 125564), (220, 94173), (330, 62782), (660, 31391)]