207968440

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{167}}^1\times {\mathrm{191}}^1$

素因数の和:532

約数の個数: 64

約数和(自身を含む): 476098560

約数和(自身を除く): 268130120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 167, 191, 326, 334, 382, 652, 668, 764, 815, 835, 955, 1304, 1336, 1528, 1630, 1670, 1910, 3260, 3340, 3820, 6520, 6680, 7640, 27221, 31133, 31897, 54442, 62266, 63794, 108884, 124532, 127588, 136105, 155665, 159485, 217768, 249064, 255176, 272210, 311330, 318970, 544420, 622660, 637940, 1088840, 1245320, 1275880, 5199211, 10398422, 20796844, 25996055, 41593688, 51992110, 103984220, 207968440]

約数ペア:

[(1, 207968440), (2, 103984220), (4, 51992110), (5, 41593688), (8, 25996055), (10, 20796844), (20, 10398422), (40, 5199211), (163, 1275880), (167, 1245320), (191, 1088840), (326, 637940), (334, 622660), (382, 544420), (652, 318970), (668, 311330), (764, 272210), (815, 255176), (835, 249064), (955, 217768), (1304, 159485), (1336, 155665), (1528, 136105), (1630, 127588), (1670, 124532), (1910, 108884), (3260, 63794), (3340, 62266), (3820, 54442), (6520, 31897), (6680, 31133), (7640, 27221)]