72457140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{172517}}^1$

素因数の和:172536

約数の個数: 48

約数和(自身を含む): 231864192

約数和(自身を除く): 159407052

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, 172517, 345034, 517551, 690068, 862585, 1035102, 1207619, 1725170, 2070204, 2415238, 2587755, 3450340, 3622857, 4830476, 5175510, 6038095, 7245714, 10351020, 12076190, 14491428, 18114285, 24152380, 36228570, 72457140]

約数ペア:

[(1, 72457140), (2, 36228570), (3, 24152380), (4, 18114285), (5, 14491428), (6, 12076190), (7, 10351020), (10, 7245714), (12, 6038095), (14, 5175510), (15, 4830476), (20, 3622857), (21, 3450340), (28, 2587755), (30, 2415238), (35, 2070204), (42, 1725170), (60, 1207619), (70, 1035102), (84, 862585), (105, 690068), (140, 517551), (210, 345034), (420, 172517)]