81264825

素因数分解:

$3^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{5087}}^1$

素因数の和:5174

約数の個数: 36

約数和(自身を含む): 147633408

約数和(自身を除く): 66368583

約数列:

[1, 3, 5, 9, 15, 25, 45, 71, 75, 213, 225, 355, 639, 1065, 1775, 3195, 5087, 5325, 15261, 15975, 25435, 45783, 76305, 127175, 228915, 361177, 381525, 1083531, 1144575, 1805885, 3250593, 5417655, 9029425, 16252965, 27088275, 81264825]

約数ペア:

[(1, 81264825), (3, 27088275), (5, 16252965), (9, 9029425), (15, 5417655), (25, 3250593), (45, 1805885), (71, 1144575), (75, 1083531), (213, 381525), (225, 361177), (355, 228915), (639, 127175), (1065, 76305), (1775, 45783), (3195, 25435), (5087, 15975), (5325, 15261)]