489598840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{499}}^1\times {\mathrm{1291}}^1$

素因数の和:1820

約数の個数: 64

約数和(自身を含む): 1162800000

約数和(自身を除く): 673201160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 499, 760, 998, 1291, 1996, 2495, 2582, 3992, 4990, 5164, 6455, 9481, 9980, 10328, 12910, 18962, 19960, 24529, 25820, 37924, 47405, 49058, 51640, 75848, 94810, 98116, 122645, 189620, 196232, 245290, 379240, 490580, 644209, 981160, 1288418, 2576836, 3221045, 5153672, 6442090, 12239971, 12884180, 24479942, 25768360, 48959884, 61199855, 97919768, 122399710, 244799420, 489598840]

約数ペア:

[(1, 489598840), (2, 244799420), (4, 122399710), (5, 97919768), (8, 61199855), (10, 48959884), (19, 25768360), (20, 24479942), (38, 12884180), (40, 12239971), (76, 6442090), (95, 5153672), (152, 3221045), (190, 2576836), (380, 1288418), (499, 981160), (760, 644209), (998, 490580), (1291, 379240), (1996, 245290), (2495, 196232), (2582, 189620), (3992, 122645), (4990, 98116), (5164, 94810), (6455, 75848), (9481, 51640), (9980, 49058), (10328, 47405), (12910, 37924), (18962, 25820), (19960, 24529)]