25997715

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:264

約数の個数: 48

約数和(自身を含む): 46725120

約数和(自身を除く): 20727405

約数列:

[1, 3, 5, 9, 15, 45, 71, 79, 103, 213, 237, 309, 355, 395, 515, 639, 711, 927, 1065, 1185, 1545, 3195, 3555, 4635, 5609, 7313, 8137, 16827, 21939, 24411, 28045, 36565, 40685, 50481, 65817, 73233, 84135, 109695, 122055, 252405, 329085, 366165, 577727, 1733181, 2888635, 5199543, 8665905, 25997715]

約数ペア:

[(1, 25997715), (3, 8665905), (5, 5199543), (9, 2888635), (15, 1733181), (45, 577727), (71, 366165), (79, 329085), (103, 252405), (213, 122055), (237, 109695), (309, 84135), (355, 73233), (395, 65817), (515, 50481), (639, 40685), (711, 36565), (927, 28045), (1065, 24411), (1185, 21939), (1545, 16827), (3195, 8137), (3555, 7313), (4635, 5609)]