51436660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:217

約数の個数: 96

約数和(自身を含む): 124104960

約数和(自身を除く): 72668300

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 71, 74, 89, 110, 142, 148, 178, 185, 220, 284, 355, 356, 370, 407, 445, 710, 740, 781, 814, 890, 979, 1420, 1562, 1628, 1780, 1958, 2035, 2627, 3124, 3293, 3905, 3916, 4070, 4895, 5254, 6319, 6586, 7810, 8140, 9790, 10508, 12638, 13135, 13172, 15620, 16465, 19580, 25276, 26270, 28897, 31595, 32930, 36223, 52540, 57794, 63190, 65860, 69509, 72446, 115588, 126380, 139018, 144485, 144892, 181115, 233803, 278036, 288970, 347545, 362230, 467606, 577940, 695090, 724460, 935212, 1169015, 1390180, 2338030, 2571833, 4676060, 5143666, 10287332, 12859165, 25718330, 51436660]

約数ペア:

[(1, 51436660), (2, 25718330), (4, 12859165), (5, 10287332), (10, 5143666), (11, 4676060), (20, 2571833), (22, 2338030), (37, 1390180), (44, 1169015), (55, 935212), (71, 724460), (74, 695090), (89, 577940), (110, 467606), (142, 362230), (148, 347545), (178, 288970), (185, 278036), (220, 233803), (284, 181115), (355, 144892), (356, 144485), (370, 139018), (407, 126380), (445, 115588), (710, 72446), (740, 69509), (781, 65860), (814, 63190), (890, 57794), (979, 52540), (1420, 36223), (1562, 32930), (1628, 31595), (1780, 28897), (1958, 26270), (2035, 25276), (2627, 19580), (3124, 16465), (3293, 15620), (3905, 13172), (3916, 13135), (4070, 12638), (4895, 10508), (5254, 9790), (6319, 8140), (6586, 7810)]