20392240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23173}}^1$

素因数の和:23197

約数の個数: 40

約数和(自身を含む): 51724368

約数和(自身を除く): 31332128

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 23173, 46346, 92692, 115865, 185384, 231730, 254903, 370768, 463460, 509806, 926920, 1019612, 1274515, 1853840, 2039224, 2549030, 4078448, 5098060, 10196120, 20392240]

約数ペア:

[(1, 20392240), (2, 10196120), (4, 5098060), (5, 4078448), (8, 2549030), (10, 2039224), (11, 1853840), (16, 1274515), (20, 1019612), (22, 926920), (40, 509806), (44, 463460), (55, 370768), (80, 254903), (88, 231730), (110, 185384), (176, 115865), (220, 92692), (440, 46346), (880, 23173)]