12156620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1223}}^1$

素因数の和:1310

約数の個数: 48

約数和(自身を含む): 29611008

約数和(自身を除く): 17454388

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1223, 1420, 1988, 2446, 2485, 4892, 4970, 6115, 8561, 9940, 12230, 17122, 24460, 34244, 42805, 85610, 86833, 171220, 173666, 347332, 434165, 607831, 868330, 1215662, 1736660, 2431324, 3039155, 6078310, 12156620]

約数ペア:

[(1, 12156620), (2, 6078310), (4, 3039155), (5, 2431324), (7, 1736660), (10, 1215662), (14, 868330), (20, 607831), (28, 434165), (35, 347332), (70, 173666), (71, 171220), (140, 86833), (142, 85610), (284, 42805), (355, 34244), (497, 24460), (710, 17122), (994, 12230), (1223, 9940), (1420, 8561), (1988, 6115), (2446, 4970), (2485, 4892)]