28971550

素因数分解:

$2^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{8161}}^1$

素因数の和:8244

約数の個数: 24

約数和(自身を含む): 54652752

約数和(自身を除く): 25681202

約数列:

[1, 2, 5, 10, 25, 50, 71, 142, 355, 710, 1775, 3550, 8161, 16322, 40805, 81610, 204025, 408050, 579431, 1158862, 2897155, 5794310, 14485775, 28971550]

約数ペア:

[(1, 28971550), (2, 14485775), (5, 5794310), (10, 2897155), (25, 1158862), (50, 579431), (71, 408050), (142, 204025), (355, 81610), (710, 40805), (1775, 16322), (3550, 8161)]