81778510

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{283}}^1$

素因数の和:409

約数の個数: 64

約数和(自身を含む): 167837184

約数和(自身を除く): 86058674

約数列:

[1, 2, 5, 10, 11, 22, 37, 55, 71, 74, 110, 142, 185, 283, 355, 370, 407, 566, 710, 781, 814, 1415, 1562, 2035, 2627, 2830, 3113, 3905, 4070, 5254, 6226, 7810, 10471, 13135, 15565, 20093, 20942, 26270, 28897, 31130, 40186, 52355, 57794, 100465, 104710, 115181, 144485, 200930, 221023, 230362, 288970, 442046, 575905, 743441, 1105115, 1151810, 1486882, 2210230, 3717205, 7434410, 8177851, 16355702, 40889255, 81778510]

約数ペア:

[(1, 81778510), (2, 40889255), (5, 16355702), (10, 8177851), (11, 7434410), (22, 3717205), (37, 2210230), (55, 1486882), (71, 1151810), (74, 1105115), (110, 743441), (142, 575905), (185, 442046), (283, 288970), (355, 230362), (370, 221023), (407, 200930), (566, 144485), (710, 115181), (781, 104710), (814, 100465), (1415, 57794), (1562, 52355), (2035, 40186), (2627, 31130), (2830, 28897), (3113, 26270), (3905, 20942), (4070, 20093), (5254, 15565), (6226, 13135), (7810, 10471)]