20545384

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{7951}}^1$

素因数の和:7993

約数の個数: 32

約数和(自身を含む): 42940800

約数和(自身を除く): 22395416

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 68, 76, 136, 152, 323, 646, 1292, 2584, 7951, 15902, 31804, 63608, 135167, 151069, 270334, 302138, 540668, 604276, 1081336, 1208552, 2568173, 5136346, 10272692, 20545384]

約数ペア:

[(1, 20545384), (2, 10272692), (4, 5136346), (8, 2568173), (17, 1208552), (19, 1081336), (34, 604276), (38, 540668), (68, 302138), (76, 270334), (136, 151069), (152, 135167), (323, 63608), (646, 31804), (1292, 15902), (2584, 7951)]