17689640

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{4969}}^1$

素因数の和:5069

約数の個数: 32

約数和(自身を含む): 40257000

約数和(自身を除く): 22567360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 4969, 9938, 19876, 24845, 39752, 49690, 99380, 198760, 442241, 884482, 1768964, 2211205, 3537928, 4422410, 8844820, 17689640]

約数ペア:

[(1, 17689640), (2, 8844820), (4, 4422410), (5, 3537928), (8, 2211205), (10, 1768964), (20, 884482), (40, 442241), (89, 198760), (178, 99380), (356, 49690), (445, 39752), (712, 24845), (890, 19876), (1780, 9938), (3560, 4969)]