81278775

素因数分解:

$3^3\times 5^2\times {\mathrm{120413}}^1$

素因数の和:120432

約数の個数: 24

約数和(自身を含む): 149313360

約数和(自身を除く): 68034585

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 675, 120413, 361239, 602065, 1083717, 1806195, 3010325, 3251151, 5418585, 9030975, 16255755, 27092925, 81278775]

約数ペア:

[(1, 81278775), (3, 27092925), (5, 16255755), (9, 9030975), (15, 5418585), (25, 3251151), (27, 3010325), (45, 1806195), (75, 1083717), (135, 602065), (225, 361239), (675, 120413)]