201786615

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{461}}^1$

素因数の和:680

約数の個数: 48

約数和(自身を含む): 358053696

約数和(自身を除く): 156267081

約数列:

[1, 3, 5, 9, 15, 45, 71, 137, 213, 355, 411, 461, 639, 685, 1065, 1233, 1383, 2055, 2305, 3195, 4149, 6165, 6915, 9727, 20745, 29181, 32731, 48635, 63157, 87543, 98193, 145905, 163655, 189471, 294579, 315785, 437715, 490965, 568413, 947355, 1472895, 2842065, 4484147, 13452441, 22420735, 40357323, 67262205, 201786615]

約数ペア:

[(1, 201786615), (3, 67262205), (5, 40357323), (9, 22420735), (15, 13452441), (45, 4484147), (71, 2842065), (137, 1472895), (213, 947355), (355, 568413), (411, 490965), (461, 437715), (639, 315785), (685, 294579), (1065, 189471), (1233, 163655), (1383, 145905), (2055, 98193), (2305, 87543), (3195, 63157), (4149, 48635), (6165, 32731), (6915, 29181), (9727, 20745)]