20704500

素因数分解:

$2^2\times 3^2\times 5^3\times {\mathrm{43}}^1\times {\mathrm{107}}^1$

素因数の和:175

約数の個数: 144

約数和(自身を含む): 67459392

約数和(自身を除く): 46754892

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 43, 45, 50, 60, 75, 86, 90, 100, 107, 125, 129, 150, 172, 180, 214, 215, 225, 250, 258, 300, 321, 375, 387, 428, 430, 450, 500, 516, 535, 642, 645, 750, 774, 860, 900, 963, 1070, 1075, 1125, 1284, 1290, 1500, 1548, 1605, 1926, 1935, 2140, 2150, 2250, 2580, 2675, 3210, 3225, 3852, 3870, 4300, 4500, 4601, 4815, 5350, 5375, 6420, 6450, 7740, 8025, 9202, 9630, 9675, 10700, 10750, 12900, 13375, 13803, 16050, 16125, 18404, 19260, 19350, 21500, 23005, 24075, 26750, 27606, 32100, 32250, 38700, 40125, 41409, 46010, 48150, 48375, 53500, 55212, 64500, 69015, 80250, 82818, 92020, 96300, 96750, 115025, 120375, 138030, 160500, 165636, 193500, 207045, 230050, 240750, 276060, 345075, 414090, 460100, 481500, 575125, 690150, 828180, 1035225, 1150250, 1380300, 1725375, 2070450, 2300500, 3450750, 4140900, 5176125, 6901500, 10352250, 20704500]

約数ペア:

[(1, 20704500), (2, 10352250), (3, 6901500), (4, 5176125), (5, 4140900), (6, 3450750), (9, 2300500), (10, 2070450), (12, 1725375), (15, 1380300), (18, 1150250), (20, 1035225), (25, 828180), (30, 690150), (36, 575125), (43, 481500), (45, 460100), (50, 414090), (60, 345075), (75, 276060), (86, 240750), (90, 230050), (100, 207045), (107, 193500), (125, 165636), (129, 160500), (150, 138030), (172, 120375), (180, 115025), (214, 96750), (215, 96300), (225, 92020), (250, 82818), (258, 80250), (300, 69015), (321, 64500), (375, 55212), (387, 53500), (428, 48375), (430, 48150), (450, 46010), (500, 41409), (516, 40125), (535, 38700), (642, 32250), (645, 32100), (750, 27606), (774, 26750), (860, 24075), (900, 23005), (963, 21500), (1070, 19350), (1075, 19260), (1125, 18404), (1284, 16125), (1290, 16050), (1500, 13803), (1548, 13375), (1605, 12900), (1926, 10750), (1935, 10700), (2140, 9675), (2150, 9630), (2250, 9202), (2580, 8025), (2675, 7740), (3210, 6450), (3225, 6420), (3852, 5375), (3870, 5350), (4300, 4815), (4500, 4601)]