138411420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{329551}}^1$

素因数の和:329570

約数の個数: 48

約数和(自身を含む): 442917888

約数和(自身を除く): 304506468

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, 329551, 659102, 988653, 1318204, 1647755, 1977306, 2306857, 3295510, 3954612, 4613714, 4943265, 6591020, 6920571, 9227428, 9886530, 11534285, 13841142, 19773060, 23068570, 27682284, 34602855, 46137140, 69205710, 138411420]

約数ペア:

[(1, 138411420), (2, 69205710), (3, 46137140), (4, 34602855), (5, 27682284), (6, 23068570), (7, 19773060), (10, 13841142), (12, 11534285), (14, 9886530), (15, 9227428), (20, 6920571), (21, 6591020), (28, 4943265), (30, 4613714), (35, 3954612), (42, 3295510), (60, 2306857), (70, 1977306), (84, 1647755), (105, 1318204), (140, 988653), (210, 659102), (420, 329551)]