205738180

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{229}}^1\times {\mathrm{1549}}^1$

素因数の和:1816

約数の個数: 48

約数和(自身を含む): 449190000

約数和(自身を除く): 243451820

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 229, 290, 458, 580, 916, 1145, 1549, 2290, 3098, 4580, 6196, 6641, 7745, 13282, 15490, 26564, 30980, 33205, 44921, 66410, 89842, 132820, 179684, 224605, 354721, 449210, 709442, 898420, 1418884, 1773605, 3547210, 7094420, 10286909, 20573818, 41147636, 51434545, 102869090, 205738180]

約数ペア:

[(1, 205738180), (2, 102869090), (4, 51434545), (5, 41147636), (10, 20573818), (20, 10286909), (29, 7094420), (58, 3547210), (116, 1773605), (145, 1418884), (229, 898420), (290, 709442), (458, 449210), (580, 354721), (916, 224605), (1145, 179684), (1549, 132820), (2290, 89842), (3098, 66410), (4580, 44921), (6196, 33205), (6641, 30980), (7745, 26564), (13282, 15490)]