256173834

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{211}}^2$

素因数の和:571

約数の個数: 48

約数和(自身を含む): 592622784

約数和(自身を除く): 336448950

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 137, 211, 274, 411, 422, 633, 822, 959, 1266, 1477, 1918, 2877, 2954, 4431, 5754, 8862, 28907, 44521, 57814, 86721, 89042, 133563, 173442, 202349, 267126, 311647, 404698, 607047, 623294, 934941, 1214094, 1869882, 6099377, 12198754, 18298131, 36596262, 42695639, 85391278, 128086917, 256173834]

約数ペア:

[(1, 256173834), (2, 128086917), (3, 85391278), (6, 42695639), (7, 36596262), (14, 18298131), (21, 12198754), (42, 6099377), (137, 1869882), (211, 1214094), (274, 934941), (411, 623294), (422, 607047), (633, 404698), (822, 311647), (959, 267126), (1266, 202349), (1477, 173442), (1918, 133563), (2877, 89042), (2954, 86721), (4431, 57814), (5754, 44521), (8862, 28907)]