121817185

素因数分解:

$5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:286

約数の個数: 48

約数和(自身を含む): 177292800

約数和(自身を除く): 55475615

約数列:

[1, 5, 7, 35, 47, 49, 71, 149, 235, 245, 329, 355, 497, 745, 1043, 1645, 2303, 2485, 3337, 3479, 5215, 7003, 7301, 10579, 11515, 16685, 17395, 23359, 35015, 36505, 49021, 52895, 74053, 116795, 163513, 245105, 343147, 370265, 497213, 518371, 817565, 1715735, 2486065, 2591855, 3480491, 17402455, 24363437, 121817185]

約数ペア:

[(1, 121817185), (5, 24363437), (7, 17402455), (35, 3480491), (47, 2591855), (49, 2486065), (71, 1715735), (149, 817565), (235, 518371), (245, 497213), (329, 370265), (355, 343147), (497, 245105), (745, 163513), (1043, 116795), (1645, 74053), (2303, 52895), (2485, 49021), (3337, 36505), (3479, 35015), (5215, 23359), (7003, 17395), (7301, 16685), (10579, 11515)]