261675650

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{2137}}^1$

素因数の和:2259

約数の個数: 48

約数和(自身を含む): 509015040

約数和(自身を除く): 247339390

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 79, 155, 158, 310, 395, 775, 790, 1550, 1975, 2137, 2449, 3950, 4274, 4898, 10685, 12245, 21370, 24490, 53425, 61225, 66247, 106850, 122450, 132494, 168823, 331235, 337646, 662470, 844115, 1656175, 1688230, 3312350, 4220575, 5233513, 8441150, 10467026, 26167565, 52335130, 130837825, 261675650]

約数ペア:

[(1, 261675650), (2, 130837825), (5, 52335130), (10, 26167565), (25, 10467026), (31, 8441150), (50, 5233513), (62, 4220575), (79, 3312350), (155, 1688230), (158, 1656175), (310, 844115), (395, 662470), (775, 337646), (790, 331235), (1550, 168823), (1975, 132494), (2137, 122450), (2449, 106850), (3950, 66247), (4274, 61225), (4898, 53425), (10685, 24490), (12245, 21370)]