20161272680

素因数分解:

$2^3\times 5^1\times {\mathrm{6949}}^1\times {\mathrm{72533}}^1$

素因数の和:79493

約数の個数: 32

約数和(自身を含む): 45370017000

約数和(自身を除く): 25208744320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 6949, 13898, 27796, 34745, 55592, 69490, 72533, 138980, 145066, 277960, 290132, 362665, 580264, 725330, 1450660, 2901320, 504031817, 1008063634, 2016127268, 2520159085, 4032254536, 5040318170, 10080636340, 20161272680]

約数ペア:

[(1, 20161272680), (2, 10080636340), (4, 5040318170), (5, 4032254536), (8, 2520159085), (10, 2016127268), (20, 1008063634), (40, 504031817), (6949, 2901320), (13898, 1450660), (27796, 725330), (34745, 580264), (55592, 362665), (69490, 290132), (72533, 277960), (138980, 145066)]