81298665

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{4231}}^1$

素因数の和:4310

約数の個数: 48

約数和(自身を含む): 163727616

約数和(自身を除く): 82428951

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 61, 63, 105, 183, 305, 315, 427, 549, 915, 1281, 2135, 2745, 3843, 4231, 6405, 12693, 19215, 21155, 29617, 38079, 63465, 88851, 148085, 190395, 258091, 266553, 444255, 774273, 1290455, 1332765, 1806637, 2322819, 3871365, 5419911, 9033185, 11614095, 16259733, 27099555, 81298665]

約数ペア:

[(1, 81298665), (3, 27099555), (5, 16259733), (7, 11614095), (9, 9033185), (15, 5419911), (21, 3871365), (35, 2322819), (45, 1806637), (61, 1332765), (63, 1290455), (105, 774273), (183, 444255), (305, 266553), (315, 258091), (427, 190395), (549, 148085), (915, 88851), (1281, 63465), (2135, 38079), (2745, 29617), (3843, 21155), (4231, 19215), (6405, 12693)]