80051020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{19717}}^1$

素因数の和:19762

約数の個数: 48

約数和(自身を含む): 198757440

約数和(自身を除く): 118706420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 19717, 39434, 78868, 98585, 138019, 197170, 276038, 394340, 552076, 571793, 690095, 1143586, 1380190, 2287172, 2760380, 2858965, 4002551, 5717930, 8005102, 11435860, 16010204, 20012755, 40025510, 80051020]

約数ペア:

[(1, 80051020), (2, 40025510), (4, 20012755), (5, 16010204), (7, 11435860), (10, 8005102), (14, 5717930), (20, 4002551), (28, 2858965), (29, 2760380), (35, 2287172), (58, 1380190), (70, 1143586), (116, 690095), (140, 571793), (145, 552076), (203, 394340), (290, 276038), (406, 197170), (580, 138019), (812, 98585), (1015, 78868), (2030, 39434), (4060, 19717)]