20005206

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{109}}^1\times {\mathrm{181}}^1$

素因数の和:321

約数の個数: 48

約数和(自身を含む): 43963920

約数和(自身を除く): 23958714

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 109, 169, 181, 218, 327, 338, 362, 507, 543, 654, 1014, 1086, 1417, 2353, 2834, 4251, 4706, 7059, 8502, 14118, 18421, 19729, 30589, 36842, 39458, 55263, 59187, 61178, 91767, 110526, 118374, 183534, 256477, 512954, 769431, 1538862, 3334201, 6668402, 10002603, 20005206]

約数ペア:

[(1, 20005206), (2, 10002603), (3, 6668402), (6, 3334201), (13, 1538862), (26, 769431), (39, 512954), (78, 256477), (109, 183534), (169, 118374), (181, 110526), (218, 91767), (327, 61178), (338, 59187), (362, 55263), (507, 39458), (543, 36842), (654, 30589), (1014, 19729), (1086, 18421), (1417, 14118), (2353, 8502), (2834, 7059), (4251, 4706)]