20496780

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{37957}}^1$

素因数の和:37975

約数の個数: 48

約数和(自身を含む): 63769440

約数和(自身を除く): 43272660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 37957, 75914, 113871, 151828, 189785, 227742, 341613, 379570, 455484, 569355, 683226, 759140, 1024839, 1138710, 1366452, 1708065, 2049678, 2277420, 3416130, 4099356, 5124195, 6832260, 10248390, 20496780]

約数ペア:

[(1, 20496780), (2, 10248390), (3, 6832260), (4, 5124195), (5, 4099356), (6, 3416130), (9, 2277420), (10, 2049678), (12, 1708065), (15, 1366452), (18, 1138710), (20, 1024839), (27, 759140), (30, 683226), (36, 569355), (45, 455484), (54, 379570), (60, 341613), (90, 227742), (108, 189785), (135, 151828), (180, 113871), (270, 75914), (540, 37957)]