20646450

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:169

約数の個数: 144

約数和(自身を含む): 62558496

約数和(自身を除く): 41912046

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 25, 30, 33, 43, 45, 50, 55, 66, 75, 86, 90, 97, 99, 110, 129, 150, 165, 194, 198, 215, 225, 258, 275, 291, 330, 387, 430, 450, 473, 485, 495, 550, 582, 645, 774, 825, 873, 946, 970, 990, 1067, 1075, 1290, 1419, 1455, 1650, 1746, 1935, 2134, 2150, 2365, 2425, 2475, 2838, 2910, 3201, 3225, 3870, 4171, 4257, 4365, 4730, 4850, 4950, 5335, 6402, 6450, 7095, 7275, 8342, 8514, 8730, 9603, 9675, 10670, 11825, 12513, 14190, 14550, 16005, 19206, 19350, 20855, 21285, 21825, 23650, 25026, 26675, 32010, 35475, 37539, 41710, 42570, 43650, 45881, 48015, 53350, 62565, 70950, 75078, 80025, 91762, 96030, 104275, 106425, 125130, 137643, 160050, 187695, 208550, 212850, 229405, 240075, 275286, 312825, 375390, 412929, 458810, 480150, 625650, 688215, 825858, 938475, 1147025, 1376430, 1876950, 2064645, 2294050, 3441075, 4129290, 6882150, 10323225, 20646450]

約数ペア:

[(1, 20646450), (2, 10323225), (3, 6882150), (5, 4129290), (6, 3441075), (9, 2294050), (10, 2064645), (11, 1876950), (15, 1376430), (18, 1147025), (22, 938475), (25, 825858), (30, 688215), (33, 625650), (43, 480150), (45, 458810), (50, 412929), (55, 375390), (66, 312825), (75, 275286), (86, 240075), (90, 229405), (97, 212850), (99, 208550), (110, 187695), (129, 160050), (150, 137643), (165, 125130), (194, 106425), (198, 104275), (215, 96030), (225, 91762), (258, 80025), (275, 75078), (291, 70950), (330, 62565), (387, 53350), (430, 48015), (450, 45881), (473, 43650), (485, 42570), (495, 41710), (550, 37539), (582, 35475), (645, 32010), (774, 26675), (825, 25026), (873, 23650), (946, 21825), (970, 21285), (990, 20855), (1067, 19350), (1075, 19206), (1290, 16005), (1419, 14550), (1455, 14190), (1650, 12513), (1746, 11825), (1935, 10670), (2134, 9675), (2150, 9603), (2365, 8730), (2425, 8514), (2475, 8342), (2838, 7275), (2910, 7095), (3201, 6450), (3225, 6402), (3870, 5335), (4171, 4950), (4257, 4850), (4365, 4730)]