19988688

素因数分解:

$2^4\times 3^1\times {\mathrm{89}}^1\times {\mathrm{4679}}^1$

素因数の和:4779

約数の個数: 40

約数和(自身を含む): 52228800

約数和(自身を除く): 32240112

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 89, 178, 267, 356, 534, 712, 1068, 1424, 2136, 4272, 4679, 9358, 14037, 18716, 28074, 37432, 56148, 74864, 112296, 224592, 416431, 832862, 1249293, 1665724, 2498586, 3331448, 4997172, 6662896, 9994344, 19988688]

約数ペア:

[(1, 19988688), (2, 9994344), (3, 6662896), (4, 4997172), (6, 3331448), (8, 2498586), (12, 1665724), (16, 1249293), (24, 832862), (48, 416431), (89, 224592), (178, 112296), (267, 74864), (356, 56148), (534, 37432), (712, 28074), (1068, 18716), (1424, 14037), (2136, 9358), (4272, 4679)]