20654730

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{227}}^1\times {\mathrm{337}}^1$

素因数の和:580

約数の個数: 64

約数和(自身を含む): 55486080

約数和(自身を除く): 34831350

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 227, 270, 337, 454, 674, 681, 1011, 1135, 1362, 1685, 2022, 2043, 2270, 3033, 3370, 3405, 4086, 5055, 6066, 6129, 6810, 9099, 10110, 10215, 12258, 15165, 18198, 20430, 30330, 30645, 45495, 61290, 76499, 90990, 152998, 229497, 382495, 458994, 688491, 764990, 1147485, 1376982, 2065473, 2294970, 3442455, 4130946, 6884910, 10327365, 20654730]

約数ペア:

[(1, 20654730), (2, 10327365), (3, 6884910), (5, 4130946), (6, 3442455), (9, 2294970), (10, 2065473), (15, 1376982), (18, 1147485), (27, 764990), (30, 688491), (45, 458994), (54, 382495), (90, 229497), (135, 152998), (227, 90990), (270, 76499), (337, 61290), (454, 45495), (674, 30645), (681, 30330), (1011, 20430), (1135, 18198), (1362, 15165), (1685, 12258), (2022, 10215), (2043, 10110), (2270, 9099), (3033, 6810), (3370, 6129), (3405, 6066), (4086, 5055)]