65916980

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{281}}^1\times {\mathrm{317}}^1$

素因数の和:644

約数の個数: 48

約数和(自身を含む): 143122896

約数和(自身を除く): 77205916

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 281, 317, 370, 562, 634, 740, 1124, 1268, 1405, 1585, 2810, 3170, 5620, 6340, 10397, 11729, 20794, 23458, 41588, 46916, 51985, 58645, 89077, 103970, 117290, 178154, 207940, 234580, 356308, 445385, 890770, 1781540, 3295849, 6591698, 13183396, 16479245, 32958490, 65916980]

約数ペア:

[(1, 65916980), (2, 32958490), (4, 16479245), (5, 13183396), (10, 6591698), (20, 3295849), (37, 1781540), (74, 890770), (148, 445385), (185, 356308), (281, 234580), (317, 207940), (370, 178154), (562, 117290), (634, 103970), (740, 89077), (1124, 58645), (1268, 51985), (1405, 46916), (1585, 41588), (2810, 23458), (3170, 20794), (5620, 11729), (6340, 10397)]