2780284

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{421}}^1$

素因数の和:565

約数の個数: 24

約数和(自身を含む): 5293568

約数和(自身を除く): 2513284

約数列:

[1, 2, 4, 13, 26, 52, 127, 254, 421, 508, 842, 1651, 1684, 3302, 5473, 6604, 10946, 21892, 53467, 106934, 213868, 695071, 1390142, 2780284]

約数ペア:

[(1, 2780284), (2, 1390142), (4, 695071), (13, 213868), (26, 106934), (52, 53467), (127, 21892), (254, 10946), (421, 6604), (508, 5473), (842, 3302), (1651, 1684)]