20431620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{607}}^1$

素因数の和:650

約数の個数: 144

約数和(自身を含む): 71705088

約数和(自身を除く): 51273468

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 17, 18, 20, 22, 30, 33, 34, 36, 44, 45, 51, 55, 60, 66, 68, 85, 90, 99, 102, 110, 132, 153, 165, 170, 180, 187, 198, 204, 220, 255, 306, 330, 340, 374, 396, 495, 510, 561, 607, 612, 660, 748, 765, 935, 990, 1020, 1122, 1214, 1530, 1683, 1821, 1870, 1980, 2244, 2428, 2805, 3035, 3060, 3366, 3642, 3740, 5463, 5610, 6070, 6677, 6732, 7284, 8415, 9105, 10319, 10926, 11220, 12140, 13354, 16830, 18210, 20031, 20638, 21852, 26708, 27315, 30957, 33385, 33660, 36420, 40062, 41276, 51595, 54630, 60093, 61914, 66770, 80124, 92871, 100155, 103190, 109260, 113509, 120186, 123828, 133540, 154785, 185742, 200310, 206380, 227018, 240372, 300465, 309570, 340527, 371484, 400620, 454036, 464355, 567545, 600930, 619140, 681054, 928710, 1021581, 1135090, 1201860, 1362108, 1702635, 1857420, 2043162, 2270180, 3405270, 4086324, 5107905, 6810540, 10215810, 20431620]

約数ペア:

[(1, 20431620), (2, 10215810), (3, 6810540), (4, 5107905), (5, 4086324), (6, 3405270), (9, 2270180), (10, 2043162), (11, 1857420), (12, 1702635), (15, 1362108), (17, 1201860), (18, 1135090), (20, 1021581), (22, 928710), (30, 681054), (33, 619140), (34, 600930), (36, 567545), (44, 464355), (45, 454036), (51, 400620), (55, 371484), (60, 340527), (66, 309570), (68, 300465), (85, 240372), (90, 227018), (99, 206380), (102, 200310), (110, 185742), (132, 154785), (153, 133540), (165, 123828), (170, 120186), (180, 113509), (187, 109260), (198, 103190), (204, 100155), (220, 92871), (255, 80124), (306, 66770), (330, 61914), (340, 60093), (374, 54630), (396, 51595), (495, 41276), (510, 40062), (561, 36420), (607, 33660), (612, 33385), (660, 30957), (748, 27315), (765, 26708), (935, 21852), (990, 20638), (1020, 20031), (1122, 18210), (1214, 16830), (1530, 13354), (1683, 12140), (1821, 11220), (1870, 10926), (1980, 10319), (2244, 9105), (2428, 8415), (2805, 7284), (3035, 6732), (3060, 6677), (3366, 6070), (3642, 5610), (3740, 5463)]