77760405

素因数分解:

$3^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1901}}^1$

素因数の和:2019

約数の個数: 40

約数和(自身を含む): 140846904

約数和(自身を除く): 63086499

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 101, 135, 303, 405, 505, 909, 1515, 1901, 2727, 4545, 5703, 8181, 9505, 13635, 17109, 28515, 40905, 51327, 85545, 153981, 192001, 256635, 576003, 769905, 960005, 1728009, 2880015, 5184027, 8640045, 15552081, 25920135, 77760405]

約数ペア:

[(1, 77760405), (3, 25920135), (5, 15552081), (9, 8640045), (15, 5184027), (27, 2880015), (45, 1728009), (81, 960005), (101, 769905), (135, 576003), (303, 256635), (405, 192001), (505, 153981), (909, 85545), (1515, 51327), (1901, 40905), (2727, 28515), (4545, 17109), (5703, 13635), (8181, 9505)]