20871488

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1289}}^1$

素因数の和:1335

約数の個数: 56

約数和(自身を含む): 47183040

約数和(自身を除く): 26311552

約数列:

[1, 2, 4, 8, 11, 16, 22, 23, 32, 44, 46, 64, 88, 92, 176, 184, 253, 352, 368, 506, 704, 736, 1012, 1289, 1472, 2024, 2578, 4048, 5156, 8096, 10312, 14179, 16192, 20624, 28358, 29647, 41248, 56716, 59294, 82496, 113432, 118588, 226864, 237176, 326117, 453728, 474352, 652234, 907456, 948704, 1304468, 1897408, 2608936, 5217872, 10435744, 20871488]

約数ペア:

[(1, 20871488), (2, 10435744), (4, 5217872), (8, 2608936), (11, 1897408), (16, 1304468), (22, 948704), (23, 907456), (32, 652234), (44, 474352), (46, 453728), (64, 326117), (88, 237176), (92, 226864), (176, 118588), (184, 113432), (253, 82496), (352, 59294), (368, 56716), (506, 41248), (704, 29647), (736, 28358), (1012, 20624), (1289, 16192), (1472, 14179), (2024, 10312), (2578, 8096), (4048, 5156)]