200819800

素因数分解:

$2^3\times 5^2\times {\mathrm{257}}^1\times {\mathrm{3907}}^1$

素因数の和:4180

約数の個数: 48

約数和(自身を含む): 468842760

約数和(自身を除く): 268022960

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 257, 514, 1028, 1285, 2056, 2570, 3907, 5140, 6425, 7814, 10280, 12850, 15628, 19535, 25700, 31256, 39070, 51400, 78140, 97675, 156280, 195350, 390700, 781400, 1004099, 2008198, 4016396, 5020495, 8032792, 10040990, 20081980, 25102475, 40163960, 50204950, 100409900, 200819800]

約数ペア:

[(1, 200819800), (2, 100409900), (4, 50204950), (5, 40163960), (8, 25102475), (10, 20081980), (20, 10040990), (25, 8032792), (40, 5020495), (50, 4016396), (100, 2008198), (200, 1004099), (257, 781400), (514, 390700), (1028, 195350), (1285, 156280), (2056, 97675), (2570, 78140), (3907, 51400), (5140, 39070), (6425, 31256), (7814, 25700), (10280, 19535), (12850, 15628)]