20125140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{47917}}^1$

素因数の和:47936

約数の個数: 48

約数和(自身を含む): 64401792

約数和(自身を除く): 44276652

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, 47917, 95834, 143751, 191668, 239585, 287502, 335419, 479170, 575004, 670838, 718755, 958340, 1006257, 1341676, 1437510, 1677095, 2012514, 2875020, 3354190, 4025028, 5031285, 6708380, 10062570, 20125140]

約数ペア:

[(1, 20125140), (2, 10062570), (3, 6708380), (4, 5031285), (5, 4025028), (6, 3354190), (7, 2875020), (10, 2012514), (12, 1677095), (14, 1437510), (15, 1341676), (20, 1006257), (21, 958340), (28, 718755), (30, 670838), (35, 575004), (42, 479170), (60, 335419), (70, 287502), (84, 239585), (105, 191668), (140, 143751), (210, 95834), (420, 47917)]