30431240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{433}}^1$

素因数の和:702

約数の個数: 64

約数和(自身を含む): 78744960

約数和(自身を除く): 48313720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 251, 280, 433, 502, 866, 1004, 1255, 1732, 1757, 2008, 2165, 2510, 3031, 3464, 3514, 4330, 5020, 6062, 7028, 8660, 8785, 10040, 12124, 14056, 15155, 17320, 17570, 24248, 30310, 35140, 60620, 70280, 108683, 121240, 217366, 434732, 543415, 760781, 869464, 1086830, 1521562, 2173660, 3043124, 3803905, 4347320, 6086248, 7607810, 15215620, 30431240]

約数ペア:

[(1, 30431240), (2, 15215620), (4, 7607810), (5, 6086248), (7, 4347320), (8, 3803905), (10, 3043124), (14, 2173660), (20, 1521562), (28, 1086830), (35, 869464), (40, 760781), (56, 543415), (70, 434732), (140, 217366), (251, 121240), (280, 108683), (433, 70280), (502, 60620), (866, 35140), (1004, 30310), (1255, 24248), (1732, 17570), (1757, 17320), (2008, 15155), (2165, 14056), (2510, 12124), (3031, 10040), (3464, 8785), (3514, 8660), (4330, 7028), (5020, 6062)]