20477690

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{739}}^1$

素因数の和:926

約数の個数: 32

約数和(自身を含む): 39320640

約数和(自身を除く): 18842950

約数列:

[1, 2, 5, 10, 17, 34, 85, 163, 170, 326, 739, 815, 1478, 1630, 2771, 3695, 5542, 7390, 12563, 13855, 25126, 27710, 62815, 120457, 125630, 240914, 602285, 1204570, 2047769, 4095538, 10238845, 20477690]

約数ペア:

[(1, 20477690), (2, 10238845), (5, 4095538), (10, 2047769), (17, 1204570), (34, 602285), (85, 240914), (163, 125630), (170, 120457), (326, 62815), (739, 27710), (815, 25126), (1478, 13855), (1630, 12563), (2771, 7390), (3695, 5542)]