20199088

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{13873}}^1$

素因数の和:13901

約数の個数: 40

約数和(自身を含む): 48170528

約数和(自身を除く): 27971440

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 13873, 27746, 55492, 97111, 110984, 180349, 194222, 221968, 360698, 388444, 721396, 776888, 1262443, 1442792, 1553776, 2524886, 2885584, 5049772, 10099544, 20199088]

約数ペア:

[(1, 20199088), (2, 10099544), (4, 5049772), (7, 2885584), (8, 2524886), (13, 1553776), (14, 1442792), (16, 1262443), (26, 776888), (28, 721396), (52, 388444), (56, 360698), (91, 221968), (104, 194222), (112, 180349), (182, 110984), (208, 97111), (364, 55492), (728, 27746), (1456, 13873)]