18865140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{44917}}^1$

素因数の和:44936

約数の個数: 48

約数和(自身を含む): 60369792

約数和(自身を除く): 41504652

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, 44917, 89834, 134751, 179668, 224585, 269502, 314419, 449170, 539004, 628838, 673755, 898340, 943257, 1257676, 1347510, 1572095, 1886514, 2695020, 3144190, 3773028, 4716285, 6288380, 9432570, 18865140]

約数ペア:

[(1, 18865140), (2, 9432570), (3, 6288380), (4, 4716285), (5, 3773028), (6, 3144190), (7, 2695020), (10, 1886514), (12, 1572095), (14, 1347510), (15, 1257676), (20, 943257), (21, 898340), (28, 673755), (30, 628838), (35, 539004), (42, 449170), (60, 314419), (70, 269502), (84, 224585), (105, 179668), (140, 134751), (210, 89834), (420, 44917)]