200720905

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1049}}^1$

素因数の和:1150

約数の個数: 48

約数和(自身を含む): 310262400

約数和(自身を除く): 109541495

約数列:

[1, 5, 7, 11, 35, 49, 55, 71, 77, 245, 355, 385, 497, 539, 781, 1049, 2485, 2695, 3479, 3905, 5245, 5467, 7343, 11539, 17395, 27335, 36715, 38269, 51401, 57695, 74479, 80773, 191345, 257005, 372395, 403865, 521353, 565411, 819269, 2606765, 2827055, 3649471, 4096345, 5734883, 18247355, 28674415, 40144181, 200720905]

約数ペア:

[(1, 200720905), (5, 40144181), (7, 28674415), (11, 18247355), (35, 5734883), (49, 4096345), (55, 3649471), (71, 2827055), (77, 2606765), (245, 819269), (355, 565411), (385, 521353), (497, 403865), (539, 372395), (781, 257005), (1049, 191345), (2485, 80773), (2695, 74479), (3479, 57695), (3905, 51401), (5245, 38269), (5467, 36715), (7343, 27335), (11539, 17395)]