20718336

素因数分解:

$2^8\times 3^1\times {\mathrm{53}}^1\times {\mathrm{509}}^1$

素因数の和:581

約数の個数: 72

約数和(自身を含む): 56291760

約数和(自身を除く): 35573424

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 53, 64, 96, 106, 128, 159, 192, 212, 256, 318, 384, 424, 509, 636, 768, 848, 1018, 1272, 1527, 1696, 2036, 2544, 3054, 3392, 4072, 5088, 6108, 6784, 8144, 10176, 12216, 13568, 16288, 20352, 24432, 26977, 32576, 40704, 48864, 53954, 65152, 80931, 97728, 107908, 130304, 161862, 195456, 215816, 323724, 390912, 431632, 647448, 863264, 1294896, 1726528, 2589792, 3453056, 5179584, 6906112, 10359168, 20718336]

約数ペア:

[(1, 20718336), (2, 10359168), (3, 6906112), (4, 5179584), (6, 3453056), (8, 2589792), (12, 1726528), (16, 1294896), (24, 863264), (32, 647448), (48, 431632), (53, 390912), (64, 323724), (96, 215816), (106, 195456), (128, 161862), (159, 130304), (192, 107908), (212, 97728), (256, 80931), (318, 65152), (384, 53954), (424, 48864), (509, 40704), (636, 32576), (768, 26977), (848, 24432), (1018, 20352), (1272, 16288), (1527, 13568), (1696, 12216), (2036, 10176), (2544, 8144), (3054, 6784), (3392, 6108), (4072, 5088)]