207992015

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1087}}^1$

素因数の和:1188

約数の個数: 48

約数和(自身を含む): 321490944

約数和(自身を除く): 113498929

約数列:

[1, 5, 7, 11, 35, 49, 55, 71, 77, 245, 355, 385, 497, 539, 781, 1087, 2485, 2695, 3479, 3905, 5435, 5467, 7609, 11957, 17395, 27335, 38045, 38269, 53263, 59785, 77177, 83699, 191345, 266315, 385885, 418495, 540239, 585893, 848947, 2701195, 2929465, 3781673, 4244735, 5942629, 18908365, 29713145, 41598403, 207992015]

約数ペア:

[(1, 207992015), (5, 41598403), (7, 29713145), (11, 18908365), (35, 5942629), (49, 4244735), (55, 3781673), (71, 2929465), (77, 2701195), (245, 848947), (355, 585893), (385, 540239), (497, 418495), (539, 385885), (781, 266315), (1087, 191345), (2485, 83699), (2695, 77177), (3479, 59785), (3905, 53263), (5435, 38269), (5467, 38045), (7609, 27335), (11957, 17395)]