821401210

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{827}}^1\times {\mathrm{2027}}^1$

素因数の和:2875

約数の個数: 48

約数和(自身を含む): 1722842784

約数和(自身を除く): 901441574

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 827, 1654, 2027, 4054, 4135, 5789, 8270, 10135, 11578, 14189, 20270, 28378, 28945, 40523, 57890, 70945, 81046, 99323, 141890, 198646, 202615, 405230, 496615, 993230, 1676329, 3352658, 8381645, 11734303, 16763290, 23468606, 58671515, 82140121, 117343030, 164280242, 410700605, 821401210]

約数ペア:

[(1, 821401210), (2, 410700605), (5, 164280242), (7, 117343030), (10, 82140121), (14, 58671515), (35, 23468606), (49, 16763290), (70, 11734303), (98, 8381645), (245, 3352658), (490, 1676329), (827, 993230), (1654, 496615), (2027, 405230), (4054, 202615), (4135, 198646), (5789, 141890), (8270, 99323), (10135, 81046), (11578, 70945), (14189, 57890), (20270, 40523), (28378, 28945)]