71780272

素因数分解:

$2^4\times {\mathrm{491}}^1\times {\mathrm{9137}}^1$

素因数の和:9636

約数の個数: 20

約数和(自身を含む): 139372776

約数和(自身を除く): 67592504

約数列:

[1, 2, 4, 8, 16, 491, 982, 1964, 3928, 7856, 9137, 18274, 36548, 73096, 146192, 4486267, 8972534, 17945068, 35890136, 71780272]

約数ペア:

[(1, 71780272), (2, 35890136), (4, 17945068), (8, 8972534), (16, 4486267), (491, 146192), (982, 73096), (1964, 36548), (3928, 18274), (7856, 9137)]