27857515

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{257}}^1$

素因数の和:451

約数の個数: 32

約数和(自身を含む): 40619520

約数和(自身を除く): 12762005

約数列:

[1, 5, 7, 19, 35, 95, 133, 163, 257, 665, 815, 1141, 1285, 1799, 3097, 4883, 5705, 8995, 15485, 21679, 24415, 34181, 41891, 108395, 170905, 209455, 293237, 795929, 1466185, 3979645, 5571503, 27857515]

約数ペア:

[(1, 27857515), (5, 5571503), (7, 3979645), (19, 1466185), (35, 795929), (95, 293237), (133, 209455), (163, 170905), (257, 108395), (665, 41891), (815, 34181), (1141, 24415), (1285, 21679), (1799, 15485), (3097, 8995), (4883, 5705)]