991952

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1$

素因数の和:291

約数の個数: 40

約数和(自身を含む): 2187360

約数和(自身を除く): 1195408

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 251, 304, 494, 502, 988, 1004, 1976, 2008, 3263, 3952, 4016, 4769, 6526, 9538, 13052, 19076, 26104, 38152, 52208, 61997, 76304, 123994, 247988, 495976, 991952]

約数ペア:

[(1, 991952), (2, 495976), (4, 247988), (8, 123994), (13, 76304), (16, 61997), (19, 52208), (26, 38152), (38, 26104), (52, 19076), (76, 13052), (104, 9538), (152, 6526), (208, 4769), (247, 4016), (251, 3952), (304, 3263), (494, 2008), (502, 1976), (988, 1004)]