20295728

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{197}}^1$

素因数の和:389

約数の個数: 40

約数和(自身を含む): 40658112

約数和(自身を除く): 20362384

約数列:

[1, 2, 4, 8, 16, 47, 94, 137, 188, 197, 274, 376, 394, 548, 752, 788, 1096, 1576, 2192, 3152, 6439, 9259, 12878, 18518, 25756, 26989, 37036, 51512, 53978, 74072, 103024, 107956, 148144, 215912, 431824, 1268483, 2536966, 5073932, 10147864, 20295728]

約数ペア:

[(1, 20295728), (2, 10147864), (4, 5073932), (8, 2536966), (16, 1268483), (47, 431824), (94, 215912), (137, 148144), (188, 107956), (197, 103024), (274, 74072), (376, 53978), (394, 51512), (548, 37036), (752, 26989), (788, 25756), (1096, 18518), (1576, 12878), (2192, 9259), (3152, 6439)]