28628975

素因数分解:

$5^2\times {\mathrm{71}}^1\times {\mathrm{127}}^2$

素因数の和:335

約数の個数: 18

約数和(自身を含む): 36285624

約数和(自身を除く): 7656649

約数列:

[1, 5, 25, 71, 127, 355, 635, 1775, 3175, 9017, 16129, 45085, 80645, 225425, 403225, 1145159, 5725795, 28628975]

約数ペア:

[(1, 28628975), (5, 5725795), (25, 1145159), (71, 403225), (127, 225425), (355, 80645), (635, 45085), (1775, 16129), (3175, 9017)]