66339420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{157951}}^1$

素因数の和:157970

約数の個数: 48

約数和(自身を含む): 212287488

約数和(自身を除く): 145948068

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, 157951, 315902, 473853, 631804, 789755, 947706, 1105657, 1579510, 1895412, 2211314, 2369265, 3159020, 3316971, 4422628, 4738530, 5528285, 6633942, 9477060, 11056570, 13267884, 16584855, 22113140, 33169710, 66339420]

約数ペア:

[(1, 66339420), (2, 33169710), (3, 22113140), (4, 16584855), (5, 13267884), (6, 11056570), (7, 9477060), (10, 6633942), (12, 5528285), (14, 4738530), (15, 4422628), (20, 3316971), (21, 3159020), (28, 2369265), (30, 2211314), (35, 1895412), (42, 1579510), (60, 1105657), (70, 947706), (84, 789755), (105, 631804), (140, 473853), (210, 315902), (420, 157951)]