20307700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{433}}^1$

素因数の和:521

約数の個数: 72

約数和(自身を含む): 51232832

約数和(自身を除く): 30925132

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 67, 70, 100, 134, 140, 175, 268, 335, 350, 433, 469, 670, 700, 866, 938, 1340, 1675, 1732, 1876, 2165, 2345, 3031, 3350, 4330, 4690, 6062, 6700, 8660, 9380, 10825, 11725, 12124, 15155, 21650, 23450, 29011, 30310, 43300, 46900, 58022, 60620, 75775, 116044, 145055, 151550, 203077, 290110, 303100, 406154, 580220, 725275, 812308, 1015385, 1450550, 2030770, 2901100, 4061540, 5076925, 10153850, 20307700]

約数ペア:

[(1, 20307700), (2, 10153850), (4, 5076925), (5, 4061540), (7, 2901100), (10, 2030770), (14, 1450550), (20, 1015385), (25, 812308), (28, 725275), (35, 580220), (50, 406154), (67, 303100), (70, 290110), (100, 203077), (134, 151550), (140, 145055), (175, 116044), (268, 75775), (335, 60620), (350, 58022), (433, 46900), (469, 43300), (670, 30310), (700, 29011), (866, 23450), (938, 21650), (1340, 15155), (1675, 12124), (1732, 11725), (1876, 10825), (2165, 9380), (2345, 8660), (3031, 6700), (3350, 6062), (4330, 4690)]