68521328

素因数分解:

$2^4\times {\mathrm{197}}^1\times {\mathrm{21739}}^1$

素因数の和:21944

約数の個数: 20

約数和(自身を含む): 133440120

約数和(自身を除く): 64918792

約数列:

[1, 2, 4, 8, 16, 197, 394, 788, 1576, 3152, 21739, 43478, 86956, 173912, 347824, 4282583, 8565166, 17130332, 34260664, 68521328]

約数ペア:

[(1, 68521328), (2, 34260664), (4, 17130332), (8, 8565166), (16, 4282583), (197, 347824), (394, 173912), (788, 86956), (1576, 43478), (3152, 21739)]