18943650

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:161

約数の個数: 144

約数和(自身を含む): 57451680

約数和(自身を除く): 38508030

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 25, 30, 33, 43, 45, 50, 55, 66, 75, 86, 89, 90, 99, 110, 129, 150, 165, 178, 198, 215, 225, 258, 267, 275, 330, 387, 430, 445, 450, 473, 495, 534, 550, 645, 774, 801, 825, 890, 946, 979, 990, 1075, 1290, 1335, 1419, 1602, 1650, 1935, 1958, 2150, 2225, 2365, 2475, 2670, 2838, 2937, 3225, 3827, 3870, 4005, 4257, 4450, 4730, 4895, 4950, 5874, 6450, 6675, 7095, 7654, 8010, 8514, 8811, 9675, 9790, 11481, 11825, 13350, 14190, 14685, 17622, 19135, 19350, 20025, 21285, 22962, 23650, 24475, 29370, 34443, 35475, 38270, 40050, 42097, 42570, 44055, 48950, 57405, 68886, 70950, 73425, 84194, 88110, 95675, 106425, 114810, 126291, 146850, 172215, 191350, 210485, 212850, 220275, 252582, 287025, 344430, 378873, 420970, 440550, 574050, 631455, 757746, 861075, 1052425, 1262910, 1722150, 1894365, 2104850, 3157275, 3788730, 6314550, 9471825, 18943650]

約数ペア:

[(1, 18943650), (2, 9471825), (3, 6314550), (5, 3788730), (6, 3157275), (9, 2104850), (10, 1894365), (11, 1722150), (15, 1262910), (18, 1052425), (22, 861075), (25, 757746), (30, 631455), (33, 574050), (43, 440550), (45, 420970), (50, 378873), (55, 344430), (66, 287025), (75, 252582), (86, 220275), (89, 212850), (90, 210485), (99, 191350), (110, 172215), (129, 146850), (150, 126291), (165, 114810), (178, 106425), (198, 95675), (215, 88110), (225, 84194), (258, 73425), (267, 70950), (275, 68886), (330, 57405), (387, 48950), (430, 44055), (445, 42570), (450, 42097), (473, 40050), (495, 38270), (534, 35475), (550, 34443), (645, 29370), (774, 24475), (801, 23650), (825, 22962), (890, 21285), (946, 20025), (979, 19350), (990, 19135), (1075, 17622), (1290, 14685), (1335, 14190), (1419, 13350), (1602, 11825), (1650, 11481), (1935, 9790), (1958, 9675), (2150, 8811), (2225, 8514), (2365, 8010), (2475, 7654), (2670, 7095), (2838, 6675), (2937, 6450), (3225, 5874), (3827, 4950), (3870, 4895), (4005, 4730), (4257, 4450)]