20415486

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{269}}^1$

素因数の和:433

約数の個数: 64

約数和(自身を含む): 50803200

約数和(自身を除く): 30387714

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 91, 139, 182, 269, 273, 278, 417, 538, 546, 807, 834, 973, 1614, 1807, 1883, 1946, 2919, 3497, 3614, 3766, 5421, 5649, 5838, 6994, 10491, 10842, 11298, 12649, 20982, 24479, 25298, 37391, 37947, 48958, 73437, 74782, 75894, 112173, 146874, 224346, 261737, 486083, 523474, 785211, 972166, 1458249, 1570422, 2916498, 3402581, 6805162, 10207743, 20415486]

約数ペア:

[(1, 20415486), (2, 10207743), (3, 6805162), (6, 3402581), (7, 2916498), (13, 1570422), (14, 1458249), (21, 972166), (26, 785211), (39, 523474), (42, 486083), (78, 261737), (91, 224346), (139, 146874), (182, 112173), (269, 75894), (273, 74782), (278, 73437), (417, 48958), (538, 37947), (546, 37391), (807, 25298), (834, 24479), (973, 20982), (1614, 12649), (1807, 11298), (1883, 10842), (1946, 10491), (2919, 6994), (3497, 5838), (3614, 5649), (3766, 5421)]