218289328

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{16699}}^1$

素因数の和:16769

約数の個数: 40

約数和(自身を含む): 455576000

約数和(自身を除く): 237286672

約数列:

[1, 2, 4, 8, 16, 19, 38, 43, 76, 86, 152, 172, 304, 344, 688, 817, 1634, 3268, 6536, 13072, 16699, 33398, 66796, 133592, 267184, 317281, 634562, 718057, 1269124, 1436114, 2538248, 2872228, 5076496, 5744456, 11488912, 13643083, 27286166, 54572332, 109144664, 218289328]

約数ペア:

[(1, 218289328), (2, 109144664), (4, 54572332), (8, 27286166), (16, 13643083), (19, 11488912), (38, 5744456), (43, 5076496), (76, 2872228), (86, 2538248), (152, 1436114), (172, 1269124), (304, 718057), (344, 634562), (688, 317281), (817, 267184), (1634, 133592), (3268, 66796), (6536, 33398), (13072, 16699)]