20656500

素因数分解:

$2^2\times 3^1\times 5^3\times {\mathrm{47}}^1\times {\mathrm{293}}^1$

素因数の和:362

約数の個数: 96

約数和(自身を含む): 61641216

約数和(自身を除く): 40984716

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 47, 50, 60, 75, 94, 100, 125, 141, 150, 188, 235, 250, 282, 293, 300, 375, 470, 500, 564, 586, 705, 750, 879, 940, 1172, 1175, 1410, 1465, 1500, 1758, 2350, 2820, 2930, 3516, 3525, 4395, 4700, 5860, 5875, 7050, 7325, 8790, 11750, 13771, 14100, 14650, 17580, 17625, 21975, 23500, 27542, 29300, 35250, 36625, 41313, 43950, 55084, 68855, 70500, 73250, 82626, 87900, 109875, 137710, 146500, 165252, 206565, 219750, 275420, 344275, 413130, 439500, 688550, 826260, 1032825, 1377100, 1721375, 2065650, 3442750, 4131300, 5164125, 6885500, 10328250, 20656500]

約数ペア:

[(1, 20656500), (2, 10328250), (3, 6885500), (4, 5164125), (5, 4131300), (6, 3442750), (10, 2065650), (12, 1721375), (15, 1377100), (20, 1032825), (25, 826260), (30, 688550), (47, 439500), (50, 413130), (60, 344275), (75, 275420), (94, 219750), (100, 206565), (125, 165252), (141, 146500), (150, 137710), (188, 109875), (235, 87900), (250, 82626), (282, 73250), (293, 70500), (300, 68855), (375, 55084), (470, 43950), (500, 41313), (564, 36625), (586, 35250), (705, 29300), (750, 27542), (879, 23500), (940, 21975), (1172, 17625), (1175, 17580), (1410, 14650), (1465, 14100), (1500, 13771), (1758, 11750), (2350, 8790), (2820, 7325), (2930, 7050), (3516, 5875), (3525, 5860), (4395, 4700)]