81345852

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{7507}}^1$

素因数の和:7567

約数の個数: 72

約数和(自身を含む): 240496256

約数和(自身を除く): 159150404

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 43, 63, 84, 86, 126, 129, 172, 252, 258, 301, 387, 516, 602, 774, 903, 1204, 1548, 1806, 2709, 3612, 5418, 7507, 10836, 15014, 22521, 30028, 45042, 52549, 67563, 90084, 105098, 135126, 157647, 210196, 270252, 315294, 322801, 472941, 630588, 645602, 945882, 968403, 1291204, 1891764, 1936806, 2259607, 2905209, 3873612, 4519214, 5810418, 6778821, 9038428, 11620836, 13557642, 20336463, 27115284, 40672926, 81345852]

約数ペア:

[(1, 81345852), (2, 40672926), (3, 27115284), (4, 20336463), (6, 13557642), (7, 11620836), (9, 9038428), (12, 6778821), (14, 5810418), (18, 4519214), (21, 3873612), (28, 2905209), (36, 2259607), (42, 1936806), (43, 1891764), (63, 1291204), (84, 968403), (86, 945882), (126, 645602), (129, 630588), (172, 472941), (252, 322801), (258, 315294), (301, 270252), (387, 210196), (516, 157647), (602, 135126), (774, 105098), (903, 90084), (1204, 67563), (1548, 52549), (1806, 45042), (2709, 30028), (3612, 22521), (5418, 15014), (7507, 10836)]