20357816

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{1999}}^1$

素因数の和:2091

約数の個数: 32

約数和(自身を含む): 40800000

約数和(自身を除く): 20442184

約数列:

[1, 2, 4, 8, 19, 38, 67, 76, 134, 152, 268, 536, 1273, 1999, 2546, 3998, 5092, 7996, 10184, 15992, 37981, 75962, 133933, 151924, 267866, 303848, 535732, 1071464, 2544727, 5089454, 10178908, 20357816]

約数ペア:

[(1, 20357816), (2, 10178908), (4, 5089454), (8, 2544727), (19, 1071464), (38, 535732), (67, 303848), (76, 267866), (134, 151924), (152, 133933), (268, 75962), (536, 37981), (1273, 15992), (1999, 10184), (2546, 7996), (3998, 5092)]