28991508

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{191}}^1$

素因数の和:357

約数の個数: 96

約数和(自身を含む): 84295680

約数和(自身を除く): 55304172

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 78, 84, 91, 139, 156, 182, 191, 273, 278, 364, 382, 417, 546, 556, 573, 764, 834, 973, 1092, 1146, 1337, 1668, 1807, 1946, 2292, 2483, 2674, 2919, 3614, 3892, 4011, 4966, 5348, 5421, 5838, 7228, 7449, 8022, 9932, 10842, 11676, 12649, 14898, 16044, 17381, 21684, 25298, 26549, 29796, 34762, 37947, 50596, 52143, 53098, 69524, 75894, 79647, 104286, 106196, 151788, 159294, 185843, 208572, 318588, 345137, 371686, 557529, 690274, 743372, 1035411, 1115058, 1380548, 2070822, 2230116, 2415959, 4141644, 4831918, 7247877, 9663836, 14495754, 28991508]

約数ペア:

[(1, 28991508), (2, 14495754), (3, 9663836), (4, 7247877), (6, 4831918), (7, 4141644), (12, 2415959), (13, 2230116), (14, 2070822), (21, 1380548), (26, 1115058), (28, 1035411), (39, 743372), (42, 690274), (52, 557529), (78, 371686), (84, 345137), (91, 318588), (139, 208572), (156, 185843), (182, 159294), (191, 151788), (273, 106196), (278, 104286), (364, 79647), (382, 75894), (417, 69524), (546, 53098), (556, 52143), (573, 50596), (764, 37947), (834, 34762), (973, 29796), (1092, 26549), (1146, 25298), (1337, 21684), (1668, 17381), (1807, 16044), (1946, 14898), (2292, 12649), (2483, 11676), (2674, 10842), (2919, 9932), (3614, 8022), (3892, 7449), (4011, 7228), (4966, 5838), (5348, 5421)]