20321336

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{269}}^1$

素因数の和:372

約数の個数: 64

約数和(自身を含む): 46656000

約数和(自身を除く): 26334664

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 71, 76, 133, 142, 152, 266, 269, 284, 497, 532, 538, 568, 994, 1064, 1076, 1349, 1883, 1988, 2152, 2698, 3766, 3976, 5111, 5396, 7532, 9443, 10222, 10792, 15064, 18886, 19099, 20444, 35777, 37772, 38198, 40888, 71554, 75544, 76396, 133693, 143108, 152792, 267386, 286216, 362881, 534772, 725762, 1069544, 1451524, 2540167, 2903048, 5080334, 10160668, 20321336]

約数ペア:

[(1, 20321336), (2, 10160668), (4, 5080334), (7, 2903048), (8, 2540167), (14, 1451524), (19, 1069544), (28, 725762), (38, 534772), (56, 362881), (71, 286216), (76, 267386), (133, 152792), (142, 143108), (152, 133693), (266, 76396), (269, 75544), (284, 71554), (497, 40888), (532, 38198), (538, 37772), (568, 35777), (994, 20444), (1064, 19099), (1076, 18886), (1349, 15064), (1883, 10792), (1988, 10222), (2152, 9443), (2698, 7532), (3766, 5396), (3976, 5111)]