20387484

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^2\times {\mathrm{1117}}^1$

素因数の和:1156

約数の個数: 72

約数和(自身を含む): 57286320

約数和(自身を除く): 36898836

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 108, 117, 156, 169, 234, 338, 351, 468, 507, 676, 702, 1014, 1117, 1404, 1521, 2028, 2234, 3042, 3351, 4468, 4563, 6084, 6702, 9126, 10053, 13404, 14521, 18252, 20106, 29042, 30159, 40212, 43563, 58084, 60318, 87126, 120636, 130689, 174252, 188773, 261378, 377546, 392067, 522756, 566319, 755092, 784134, 1132638, 1568268, 1698957, 2265276, 3397914, 5096871, 6795828, 10193742, 20387484]

約数ペア:

[(1, 20387484), (2, 10193742), (3, 6795828), (4, 5096871), (6, 3397914), (9, 2265276), (12, 1698957), (13, 1568268), (18, 1132638), (26, 784134), (27, 755092), (36, 566319), (39, 522756), (52, 392067), (54, 377546), (78, 261378), (108, 188773), (117, 174252), (156, 130689), (169, 120636), (234, 87126), (338, 60318), (351, 58084), (468, 43563), (507, 40212), (676, 30159), (702, 29042), (1014, 20106), (1117, 18252), (1404, 14521), (1521, 13404), (2028, 10053), (2234, 9126), (3042, 6702), (3351, 6084), (4468, 4563)]