81529570

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{433}}^1\times {\mathrm{991}}^1$

素因数の和:1450

約数の個数: 32

約数和(自身を含む): 154990080

約数和(自身を除く): 73460510

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 433, 866, 991, 1982, 2165, 4330, 4955, 8227, 9910, 16454, 18829, 37658, 41135, 82270, 94145, 188290, 429103, 858206, 2145515, 4291030, 8152957, 16305914, 40764785, 81529570]

約数ペア:

[(1, 81529570), (2, 40764785), (5, 16305914), (10, 8152957), (19, 4291030), (38, 2145515), (95, 858206), (190, 429103), (433, 188290), (866, 94145), (991, 82270), (1982, 41135), (2165, 37658), (4330, 18829), (4955, 16454), (8227, 9910)]