12966020

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{397}}^1$

素因数の和:500

約数の個数: 48

約数和(自身を含む): 28885248

約数和(自身を除く): 15919228

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 71, 92, 115, 142, 230, 284, 355, 397, 460, 710, 794, 1420, 1588, 1633, 1985, 3266, 3970, 6532, 7940, 8165, 9131, 16330, 18262, 28187, 32660, 36524, 45655, 56374, 91310, 112748, 140935, 182620, 281870, 563740, 648301, 1296602, 2593204, 3241505, 6483010, 12966020]

約数ペア:

[(1, 12966020), (2, 6483010), (4, 3241505), (5, 2593204), (10, 1296602), (20, 648301), (23, 563740), (46, 281870), (71, 182620), (92, 140935), (115, 112748), (142, 91310), (230, 56374), (284, 45655), (355, 36524), (397, 32660), (460, 28187), (710, 18262), (794, 16330), (1420, 9131), (1588, 8165), (1633, 7940), (1985, 6532), (3266, 3970)]