2688920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{5171}}^1$

素因数の和:5195

約数の個数: 32

約数和(自身を含む): 6516720

約数和(自身を除く): 3827800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 5171, 10342, 20684, 25855, 41368, 51710, 67223, 103420, 134446, 206840, 268892, 336115, 537784, 672230, 1344460, 2688920]

約数ペア:

[(1, 2688920), (2, 1344460), (4, 672230), (5, 537784), (8, 336115), (10, 268892), (13, 206840), (20, 134446), (26, 103420), (40, 67223), (52, 51710), (65, 41368), (104, 25855), (130, 20684), (260, 10342), (520, 5171)]