61621980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{146719}}^1$

素因数の和:146738

約数の個数: 48

約数和(自身を含む): 197191680

約数和(自身を除く): 135569700

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, 146719, 293438, 440157, 586876, 733595, 880314, 1027033, 1467190, 1760628, 2054066, 2200785, 2934380, 3081099, 4108132, 4401570, 5135165, 6162198, 8803140, 10270330, 12324396, 15405495, 20540660, 30810990, 61621980]

約数ペア:

[(1, 61621980), (2, 30810990), (3, 20540660), (4, 15405495), (5, 12324396), (6, 10270330), (7, 8803140), (10, 6162198), (12, 5135165), (14, 4401570), (15, 4108132), (20, 3081099), (21, 2934380), (28, 2200785), (30, 2054066), (35, 1760628), (42, 1467190), (60, 1027033), (70, 880314), (84, 733595), (105, 586876), (140, 440157), (210, 293438), (420, 146719)]