205085240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{449}}^1\times {\mathrm{601}}^1$

素因数の和:1080

約数の個数: 64

約数和(自身を含む): 487620000

約数和(自身を除く): 282534760

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 449, 601, 760, 898, 1202, 1796, 2245, 2404, 3005, 3592, 4490, 4808, 6010, 8531, 8980, 11419, 12020, 17062, 17960, 22838, 24040, 34124, 42655, 45676, 57095, 68248, 85310, 91352, 114190, 170620, 228380, 269849, 341240, 456760, 539698, 1079396, 1349245, 2158792, 2698490, 5127131, 5396980, 10254262, 10793960, 20508524, 25635655, 41017048, 51271310, 102542620, 205085240]

約数ペア:

[(1, 205085240), (2, 102542620), (4, 51271310), (5, 41017048), (8, 25635655), (10, 20508524), (19, 10793960), (20, 10254262), (38, 5396980), (40, 5127131), (76, 2698490), (95, 2158792), (152, 1349245), (190, 1079396), (380, 539698), (449, 456760), (601, 341240), (760, 269849), (898, 228380), (1202, 170620), (1796, 114190), (2245, 91352), (2404, 85310), (3005, 68248), (3592, 57095), (4490, 45676), (4808, 42655), (6010, 34124), (8531, 24040), (8980, 22838), (11419, 17960), (12020, 17062)]