905008

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{229}}^1$

素因数の和:269

約数の個数: 40

約数和(自身を含む): 1996400

約数和(自身を除く): 1091392

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 229, 247, 304, 458, 494, 916, 988, 1832, 1976, 2977, 3664, 3952, 4351, 5954, 8702, 11908, 17404, 23816, 34808, 47632, 56563, 69616, 113126, 226252, 452504, 905008]

約数ペア:

[(1, 905008), (2, 452504), (4, 226252), (8, 113126), (13, 69616), (16, 56563), (19, 47632), (26, 34808), (38, 23816), (52, 17404), (76, 11908), (104, 8702), (152, 5954), (208, 4351), (229, 3952), (247, 3664), (304, 2977), (458, 1976), (494, 1832), (916, 988)]