18828740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19213}}^1$

素因数の和:19236

約数の個数: 36

約数和(自身を含む): 45998316

約数和(自身を除く): 27169576

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 19213, 38426, 76852, 96065, 134491, 192130, 268982, 384260, 537964, 672455, 941437, 1344910, 1882874, 2689820, 3765748, 4707185, 9414370, 18828740]

約数ペア:

[(1, 18828740), (2, 9414370), (4, 4707185), (5, 3765748), (7, 2689820), (10, 1882874), (14, 1344910), (20, 941437), (28, 672455), (35, 537964), (49, 384260), (70, 268982), (98, 192130), (140, 134491), (196, 96065), (245, 76852), (490, 38426), (980, 19213)]