7945140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{18917}}^1$

素因数の和:18936

約数の個数: 48

約数和(自身を含む): 25425792

約数和(自身を除く): 17480652

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, 18917, 37834, 56751, 75668, 94585, 113502, 132419, 189170, 227004, 264838, 283755, 378340, 397257, 529676, 567510, 662095, 794514, 1135020, 1324190, 1589028, 1986285, 2648380, 3972570, 7945140]

約数ペア:

[(1, 7945140), (2, 3972570), (3, 2648380), (4, 1986285), (5, 1589028), (6, 1324190), (7, 1135020), (10, 794514), (12, 662095), (14, 567510), (15, 529676), (20, 397257), (21, 378340), (28, 283755), (30, 264838), (35, 227004), (42, 189170), (60, 132419), (70, 113502), (84, 94585), (105, 75668), (140, 56751), (210, 37834), (420, 18917)]