61520220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{2609}}^1$

素因数の和:2755

約数の個数: 72

約数和(自身を含む): 188107920

約数和(自身を除く): 126587700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 131, 180, 262, 393, 524, 655, 786, 1179, 1310, 1572, 1965, 2358, 2609, 2620, 3930, 4716, 5218, 5895, 7827, 7860, 10436, 11790, 13045, 15654, 23481, 23580, 26090, 31308, 39135, 46962, 52180, 78270, 93924, 117405, 156540, 234810, 341779, 469620, 683558, 1025337, 1367116, 1708895, 2050674, 3076011, 3417790, 4101348, 5126685, 6152022, 6835580, 10253370, 12304044, 15380055, 20506740, 30760110, 61520220]

約数ペア:

[(1, 61520220), (2, 30760110), (3, 20506740), (4, 15380055), (5, 12304044), (6, 10253370), (9, 6835580), (10, 6152022), (12, 5126685), (15, 4101348), (18, 3417790), (20, 3076011), (30, 2050674), (36, 1708895), (45, 1367116), (60, 1025337), (90, 683558), (131, 469620), (180, 341779), (262, 234810), (393, 156540), (524, 117405), (655, 93924), (786, 78270), (1179, 52180), (1310, 46962), (1572, 39135), (1965, 31308), (2358, 26090), (2609, 23580), (2620, 23481), (3930, 15654), (4716, 13045), (5218, 11790), (5895, 10436), (7827, 7860)]