13778980

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{7741}}^1$

素因数の和:7839

約数の個数: 24

約数和(自身を含む): 29264760

約数和(自身を除く): 15485780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 7741, 15482, 30964, 38705, 77410, 154820, 688949, 1377898, 2755796, 3444745, 6889490, 13778980]

約数ペア:

[(1, 13778980), (2, 6889490), (4, 3444745), (5, 2755796), (10, 1377898), (20, 688949), (89, 154820), (178, 77410), (356, 38705), (445, 30964), (890, 15482), (1780, 7741)]