20530080

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{269}}^1$

素因数の和:343

約数の個数: 144

約数和(自身を含む): 71646120

約数和(自身を除く): 51116040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 53, 60, 72, 80, 90, 96, 106, 120, 144, 159, 160, 180, 212, 240, 265, 269, 288, 318, 360, 424, 477, 480, 530, 538, 636, 720, 795, 807, 848, 954, 1060, 1076, 1272, 1345, 1440, 1590, 1614, 1696, 1908, 2120, 2152, 2385, 2421, 2544, 2690, 3180, 3228, 3816, 4035, 4240, 4304, 4770, 4842, 5088, 5380, 6360, 6456, 7632, 8070, 8480, 8608, 9540, 9684, 10760, 12105, 12720, 12912, 14257, 15264, 16140, 19080, 19368, 21520, 24210, 25440, 25824, 28514, 32280, 38160, 38736, 42771, 43040, 48420, 57028, 64560, 71285, 76320, 77472, 85542, 96840, 114056, 128313, 129120, 142570, 171084, 193680, 213855, 228112, 256626, 285140, 342168, 387360, 427710, 456224, 513252, 570280, 641565, 684336, 855420, 1026504, 1140560, 1283130, 1368672, 1710840, 2053008, 2281120, 2566260, 3421680, 4106016, 5132520, 6843360, 10265040, 20530080]

約数ペア:

[(1, 20530080), (2, 10265040), (3, 6843360), (4, 5132520), (5, 4106016), (6, 3421680), (8, 2566260), (9, 2281120), (10, 2053008), (12, 1710840), (15, 1368672), (16, 1283130), (18, 1140560), (20, 1026504), (24, 855420), (30, 684336), (32, 641565), (36, 570280), (40, 513252), (45, 456224), (48, 427710), (53, 387360), (60, 342168), (72, 285140), (80, 256626), (90, 228112), (96, 213855), (106, 193680), (120, 171084), (144, 142570), (159, 129120), (160, 128313), (180, 114056), (212, 96840), (240, 85542), (265, 77472), (269, 76320), (288, 71285), (318, 64560), (360, 57028), (424, 48420), (477, 43040), (480, 42771), (530, 38736), (538, 38160), (636, 32280), (720, 28514), (795, 25824), (807, 25440), (848, 24210), (954, 21520), (1060, 19368), (1076, 19080), (1272, 16140), (1345, 15264), (1440, 14257), (1590, 12912), (1614, 12720), (1696, 12105), (1908, 10760), (2120, 9684), (2152, 9540), (2385, 8608), (2421, 8480), (2544, 8070), (2690, 7632), (3180, 6456), (3228, 6360), (3816, 5380), (4035, 5088), (4240, 4842), (4304, 4770)]