20471075

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{607}}^1$

素因数の和:707

約数の個数: 24

約数和(自身を含む): 27141120

約数和(自身を除く): 6670045

約数列:

[1, 5, 19, 25, 71, 95, 355, 475, 607, 1349, 1775, 3035, 6745, 11533, 15175, 33725, 43097, 57665, 215485, 288325, 818843, 1077425, 4094215, 20471075]

約数ペア:

[(1, 20471075), (5, 4094215), (19, 1077425), (25, 818843), (71, 288325), (95, 215485), (355, 57665), (475, 43097), (607, 33725), (1349, 15175), (1775, 11533), (3035, 6745)]