208456400

素因数分解:

$2^4\times 5^2\times {\mathrm{31}}^1\times {\mathrm{16811}}^1$

素因数の和:16860

約数の個数: 60

約数和(自身を含む): 517002624

約数和(自身を除く): 308546224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 155, 200, 248, 310, 400, 496, 620, 775, 1240, 1550, 2480, 3100, 6200, 12400, 16811, 33622, 67244, 84055, 134488, 168110, 268976, 336220, 420275, 521141, 672440, 840550, 1042282, 1344880, 1681100, 2084564, 2605705, 3362200, 4169128, 5211410, 6724400, 8338256, 10422820, 13028525, 20845640, 26057050, 41691280, 52114100, 104228200, 208456400]

約数ペア:

[(1, 208456400), (2, 104228200), (4, 52114100), (5, 41691280), (8, 26057050), (10, 20845640), (16, 13028525), (20, 10422820), (25, 8338256), (31, 6724400), (40, 5211410), (50, 4169128), (62, 3362200), (80, 2605705), (100, 2084564), (124, 1681100), (155, 1344880), (200, 1042282), (248, 840550), (310, 672440), (400, 521141), (496, 420275), (620, 336220), (775, 268976), (1240, 168110), (1550, 134488), (2480, 84055), (3100, 67244), (6200, 33622), (12400, 16811)]