620256840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{738401}}^1$

素因数の和:738422

約数の個数: 64

約数和(自身を含む): 2126597760

約数和(自身を除く): 1506340920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 738401, 1476802, 2215203, 2953604, 3692005, 4430406, 5168807, 5907208, 7384010, 8860812, 10337614, 11076015, 14768020, 15506421, 17721624, 20675228, 22152030, 25844035, 29536040, 31012842, 41350456, 44304060, 51688070, 62025684, 77532105, 88608120, 103376140, 124051368, 155064210, 206752280, 310128420, 620256840]

約数ペア:

[(1, 620256840), (2, 310128420), (3, 206752280), (4, 155064210), (5, 124051368), (6, 103376140), (7, 88608120), (8, 77532105), (10, 62025684), (12, 51688070), (14, 44304060), (15, 41350456), (20, 31012842), (21, 29536040), (24, 25844035), (28, 22152030), (30, 20675228), (35, 17721624), (40, 15506421), (42, 14768020), (56, 11076015), (60, 10337614), (70, 8860812), (84, 7384010), (105, 5907208), (120, 5168807), (140, 4430406), (168, 3692005), (210, 2953604), (280, 2215203), (420, 1476802), (840, 738401)]