87923990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{1283}}^1$

素因数の和:1397

約数の個数: 64

約数和(自身を含む): 199687680

約数和(自身を除く): 111763690

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 89, 110, 154, 178, 385, 445, 623, 770, 890, 979, 1246, 1283, 1958, 2566, 3115, 4895, 6230, 6415, 6853, 8981, 9790, 12830, 13706, 14113, 17962, 28226, 34265, 44905, 68530, 70565, 89810, 98791, 114187, 141130, 197582, 228374, 493955, 570935, 799309, 987910, 1141870, 1256057, 1598618, 2512114, 3996545, 6280285, 7993090, 8792399, 12560570, 17584798, 43961995, 87923990]

約数ペア:

[(1, 87923990), (2, 43961995), (5, 17584798), (7, 12560570), (10, 8792399), (11, 7993090), (14, 6280285), (22, 3996545), (35, 2512114), (55, 1598618), (70, 1256057), (77, 1141870), (89, 987910), (110, 799309), (154, 570935), (178, 493955), (385, 228374), (445, 197582), (623, 141130), (770, 114187), (890, 98791), (979, 89810), (1246, 70565), (1283, 68530), (1958, 44905), (2566, 34265), (3115, 28226), (4895, 17962), (6230, 14113), (6415, 13706), (6853, 12830), (8981, 9790)]