51538040

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{359}}^1$

素因数の和:504

約数の個数: 64

約数和(自身を含む): 120657600

約数和(自身を除く): 69119560

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 97, 148, 185, 194, 296, 359, 370, 388, 485, 718, 740, 776, 970, 1436, 1480, 1795, 1940, 2872, 3589, 3590, 3880, 7178, 7180, 13283, 14356, 14360, 17945, 26566, 28712, 34823, 35890, 53132, 66415, 69646, 71780, 106264, 132830, 139292, 143560, 174115, 265660, 278584, 348230, 531320, 696460, 1288451, 1392920, 2576902, 5153804, 6442255, 10307608, 12884510, 25769020, 51538040]

約数ペア:

[(1, 51538040), (2, 25769020), (4, 12884510), (5, 10307608), (8, 6442255), (10, 5153804), (20, 2576902), (37, 1392920), (40, 1288451), (74, 696460), (97, 531320), (148, 348230), (185, 278584), (194, 265660), (296, 174115), (359, 143560), (370, 139292), (388, 132830), (485, 106264), (718, 71780), (740, 69646), (776, 66415), (970, 53132), (1436, 35890), (1480, 34823), (1795, 28712), (1940, 26566), (2872, 17945), (3589, 14360), (3590, 14356), (3880, 13283), (7178, 7180)]