28645060

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1\times {\mathrm{193}}^1$

素因数の和:424

約数の個数: 48

約数和(自身を含む): 62283312

約数和(自身を除く): 33638252

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 181, 193, 205, 362, 386, 410, 724, 772, 820, 905, 965, 1810, 1930, 3620, 3860, 7421, 7913, 14842, 15826, 29684, 31652, 34933, 37105, 39565, 69866, 74210, 79130, 139732, 148420, 158260, 174665, 349330, 698660, 1432253, 2864506, 5729012, 7161265, 14322530, 28645060]

約数ペア:

[(1, 28645060), (2, 14322530), (4, 7161265), (5, 5729012), (10, 2864506), (20, 1432253), (41, 698660), (82, 349330), (164, 174665), (181, 158260), (193, 148420), (205, 139732), (362, 79130), (386, 74210), (410, 69866), (724, 39565), (772, 37105), (820, 34933), (905, 31652), (965, 29684), (1810, 15826), (1930, 14842), (3620, 7913), (3860, 7421)]