12387880

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{5077}}^1$

素因数の和:5149

約数の個数: 32

約数和(自身を含む): 28335240

約数和(自身を除く): 15947360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 5077, 10154, 20308, 25385, 40616, 50770, 101540, 203080, 309697, 619394, 1238788, 1548485, 2477576, 3096970, 6193940, 12387880]

約数ペア:

[(1, 12387880), (2, 6193940), (4, 3096970), (5, 2477576), (8, 1548485), (10, 1238788), (20, 619394), (40, 309697), (61, 203080), (122, 101540), (244, 50770), (305, 40616), (488, 25385), (610, 20308), (1220, 10154), (2440, 5077)]