20289900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{47}}^1\times {\mathrm{1439}}^1$

素因数の和:1503

約数の個数: 72

約数和(自身を含む): 59996160

約数和(自身を除く): 39706260

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 47, 50, 60, 75, 94, 100, 141, 150, 188, 235, 282, 300, 470, 564, 705, 940, 1175, 1410, 1439, 2350, 2820, 2878, 3525, 4317, 4700, 5756, 7050, 7195, 8634, 14100, 14390, 17268, 21585, 28780, 35975, 43170, 67633, 71950, 86340, 107925, 135266, 143900, 202899, 215850, 270532, 338165, 405798, 431700, 676330, 811596, 1014495, 1352660, 1690825, 2028990, 3381650, 4057980, 5072475, 6763300, 10144950, 20289900]

約数ペア:

[(1, 20289900), (2, 10144950), (3, 6763300), (4, 5072475), (5, 4057980), (6, 3381650), (10, 2028990), (12, 1690825), (15, 1352660), (20, 1014495), (25, 811596), (30, 676330), (47, 431700), (50, 405798), (60, 338165), (75, 270532), (94, 215850), (100, 202899), (141, 143900), (150, 135266), (188, 107925), (235, 86340), (282, 71950), (300, 67633), (470, 43170), (564, 35975), (705, 28780), (940, 21585), (1175, 17268), (1410, 14390), (1439, 14100), (2350, 8634), (2820, 7195), (2878, 7050), (3525, 5756), (4317, 4700)]