80495020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{4507}}^1$

素因数の和:4582

約数の個数: 48

約数和(自身を含む): 181762560

約数和(自身を除く): 101267540

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 47, 76, 94, 95, 188, 190, 235, 380, 470, 893, 940, 1786, 3572, 4465, 4507, 8930, 9014, 17860, 18028, 22535, 45070, 85633, 90140, 171266, 211829, 342532, 423658, 428165, 847316, 856330, 1059145, 1712660, 2118290, 4024751, 4236580, 8049502, 16099004, 20123755, 40247510, 80495020]

約数ペア:

[(1, 80495020), (2, 40247510), (4, 20123755), (5, 16099004), (10, 8049502), (19, 4236580), (20, 4024751), (38, 2118290), (47, 1712660), (76, 1059145), (94, 856330), (95, 847316), (188, 428165), (190, 423658), (235, 342532), (380, 211829), (470, 171266), (893, 90140), (940, 85633), (1786, 45070), (3572, 22535), (4465, 18028), (4507, 17860), (8930, 9014)]