20199453952

素因数分解:

$2^8\times {\mathrm{47}}^1\times {\mathrm{449}}^1\times {\mathrm{3739}}^1$

素因数の和:4251

約数の個数: 72

約数和(自身を含む): 41280624000

約数和(自身を除く): 21081170048

約数列:

[1, 2, 4, 8, 16, 32, 47, 64, 94, 128, 188, 256, 376, 449, 752, 898, 1504, 1796, 3008, 3592, 3739, 6016, 7184, 7478, 12032, 14368, 14956, 21103, 28736, 29912, 42206, 57472, 59824, 84412, 114944, 119648, 168824, 175733, 239296, 337648, 351466, 478592, 675296, 702932, 957184, 1350592, 1405864, 1678811, 2701184, 2811728, 3357622, 5402368, 5623456, 6715244, 11246912, 13430488, 22493824, 26860976, 44987648, 53721952, 78904117, 107443904, 157808234, 214887808, 315616468, 429775616, 631232936, 1262465872, 2524931744, 5049863488, 10099726976, 20199453952]

約数ペア:

[(1, 20199453952), (2, 10099726976), (4, 5049863488), (8, 2524931744), (16, 1262465872), (32, 631232936), (47, 429775616), (64, 315616468), (94, 214887808), (128, 157808234), (188, 107443904), (256, 78904117), (376, 53721952), (449, 44987648), (752, 26860976), (898, 22493824), (1504, 13430488), (1796, 11246912), (3008, 6715244), (3592, 5623456), (3739, 5402368), (6016, 3357622), (7184, 2811728), (7478, 2701184), (12032, 1678811), (14368, 1405864), (14956, 1350592), (21103, 957184), (28736, 702932), (29912, 675296), (42206, 478592), (57472, 351466), (59824, 337648), (84412, 239296), (114944, 175733), (119648, 168824)]