206868620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1\times {\mathrm{211}}^1$

素因数の和:423

約数の個数: 96

約数和(自身を含む): 512870400

約数和(自身を除く): 306001780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 149, 188, 211, 235, 298, 329, 422, 470, 596, 658, 745, 844, 940, 1043, 1055, 1316, 1477, 1490, 1645, 2086, 2110, 2954, 2980, 3290, 4172, 4220, 5215, 5908, 6580, 7003, 7385, 9917, 10430, 14006, 14770, 19834, 20860, 28012, 29540, 31439, 35015, 39668, 49021, 49585, 62878, 69419, 70030, 98042, 99170, 125756, 138838, 140060, 157195, 196084, 198340, 220073, 245105, 277676, 314390, 347095, 440146, 490210, 628780, 694190, 880292, 980420, 1100365, 1388380, 1477633, 2200730, 2955266, 4401460, 5910532, 7388165, 10343431, 14776330, 20686862, 29552660, 41373724, 51717155, 103434310, 206868620]

約数ペア:

[(1, 206868620), (2, 103434310), (4, 51717155), (5, 41373724), (7, 29552660), (10, 20686862), (14, 14776330), (20, 10343431), (28, 7388165), (35, 5910532), (47, 4401460), (70, 2955266), (94, 2200730), (140, 1477633), (149, 1388380), (188, 1100365), (211, 980420), (235, 880292), (298, 694190), (329, 628780), (422, 490210), (470, 440146), (596, 347095), (658, 314390), (745, 277676), (844, 245105), (940, 220073), (1043, 198340), (1055, 196084), (1316, 157195), (1477, 140060), (1490, 138838), (1645, 125756), (2086, 99170), (2110, 98042), (2954, 70030), (2980, 69419), (3290, 62878), (4172, 49585), (4220, 49021), (5215, 39668), (5908, 35015), (6580, 31439), (7003, 29540), (7385, 28012), (9917, 20860), (10430, 19834), (14006, 14770)]