1929206890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{280001}}^1$

素因数の和:280074

約数の個数: 32

約数和(自身を含む): 3810267216

約数和(自身を除く): 1881060326

約数列:

[1, 2, 5, 10, 13, 26, 53, 65, 106, 130, 265, 530, 689, 1378, 3445, 6890, 280001, 560002, 1400005, 2800010, 3640013, 7280026, 14840053, 18200065, 29680106, 36400130, 74200265, 148400530, 192920689, 385841378, 964603445, 1929206890]

約数ペア:

[(1, 1929206890), (2, 964603445), (5, 385841378), (10, 192920689), (13, 148400530), (26, 74200265), (53, 36400130), (65, 29680106), (106, 18200065), (130, 14840053), (265, 7280026), (530, 3640013), (689, 2800010), (1378, 1400005), (3445, 560002), (6890, 280001)]