20278315001

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{751}}^1\times {\mathrm{997}}^1$

素因数の和:1881

約数の個数: 32

約数和(自身を含む): 23991856128

約数和(自身を除く): 3713541127

約数列:

[1, 7, 53, 73, 371, 511, 751, 997, 3869, 5257, 6979, 27083, 39803, 52841, 54823, 72781, 278621, 369887, 383761, 509467, 748747, 2905619, 3857393, 5241229, 20339333, 27001751, 39683591, 54658531, 277785137, 382609717, 2896902143, 20278315001]

約数ペア:

[(1, 20278315001), (7, 2896902143), (53, 382609717), (73, 277785137), (371, 54658531), (511, 39683591), (751, 27001751), (997, 20339333), (3869, 5241229), (5257, 3857393), (6979, 2905619), (27083, 748747), (39803, 509467), (52841, 383761), (54823, 369887), (72781, 278621)]