8281140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19717}}^1$

素因数の和:19736

約数の個数: 48

約数和(自身を含む): 26500992

約数和(自身を除く): 18219852

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 19717, 39434, 59151, 78868, 98585, 118302, 138019, 197170, 236604, 276038, 295755, 394340, 414057, 552076, 591510, 690095, 828114, 1183020, 1380190, 1656228, 2070285, 2760380, 4140570, 8281140]

約数ペア:

[(1, 8281140), (2, 4140570), (3, 2760380), (4, 2070285), (5, 1656228), (6, 1380190), (7, 1183020), (10, 828114), (12, 690095), (14, 591510), (15, 552076), (20, 414057), (21, 394340), (28, 295755), (30, 276038), (35, 236604), (42, 197170), (60, 138019), (70, 118302), (84, 98585), (105, 78868), (140, 59151), (210, 39434), (420, 19717)]