20146980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{47969}}^1$

素因数の和:47988

約数の個数: 48

約数和(自身を含む): 64471680

約数和(自身を除く): 44324700

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, 47969, 95938, 143907, 191876, 239845, 287814, 335783, 479690, 575628, 671566, 719535, 959380, 1007349, 1343132, 1439070, 1678915, 2014698, 2878140, 3357830, 4029396, 5036745, 6715660, 10073490, 20146980]

約数ペア:

[(1, 20146980), (2, 10073490), (3, 6715660), (4, 5036745), (5, 4029396), (6, 3357830), (7, 2878140), (10, 2014698), (12, 1678915), (14, 1439070), (15, 1343132), (20, 1007349), (21, 959380), (28, 719535), (30, 671566), (35, 575628), (42, 479690), (60, 335783), (70, 287814), (84, 239845), (105, 191876), (140, 143907), (210, 95938), (420, 47969)]