19393990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{283}}^1$

素因数の和:397

約数の個数: 64

約数和(自身を含む): 44167680

約数和(自身を除く): 24773690

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 89, 110, 154, 178, 283, 385, 445, 566, 623, 770, 890, 979, 1246, 1415, 1958, 1981, 2830, 3113, 3115, 3962, 4895, 6226, 6230, 6853, 9790, 9905, 13706, 15565, 19810, 21791, 25187, 31130, 34265, 43582, 50374, 68530, 108955, 125935, 176309, 217910, 251870, 277057, 352618, 554114, 881545, 1385285, 1763090, 1939399, 2770570, 3878798, 9696995, 19393990]

約数ペア:

[(1, 19393990), (2, 9696995), (5, 3878798), (7, 2770570), (10, 1939399), (11, 1763090), (14, 1385285), (22, 881545), (35, 554114), (55, 352618), (70, 277057), (77, 251870), (89, 217910), (110, 176309), (154, 125935), (178, 108955), (283, 68530), (385, 50374), (445, 43582), (566, 34265), (623, 31130), (770, 25187), (890, 21791), (979, 19810), (1246, 15565), (1415, 13706), (1958, 9905), (1981, 9790), (2830, 6853), (3113, 6230), (3115, 6226), (3962, 4895)]