81508725

素因数分解:

$3^2\times 5^2\times {\mathrm{193}}^1\times {\mathrm{1877}}^1$

素因数の和:2086

約数の個数: 36

約数和(自身を含む): 146825796

約数和(自身を除く): 65317071

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 193, 225, 579, 965, 1737, 1877, 2895, 4825, 5631, 8685, 9385, 14475, 16893, 28155, 43425, 46925, 84465, 140775, 362261, 422325, 1086783, 1811305, 3260349, 5433915, 9056525, 16301745, 27169575, 81508725]

約数ペア:

[(1, 81508725), (3, 27169575), (5, 16301745), (9, 9056525), (15, 5433915), (25, 3260349), (45, 1811305), (75, 1086783), (193, 422325), (225, 362261), (579, 140775), (965, 84465), (1737, 46925), (1877, 43425), (2895, 28155), (4825, 16893), (5631, 14475), (8685, 9385)]