161161220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{349}}^1\times {\mathrm{2099}}^1$

素因数の和:2468

約数の個数: 48

約数和(自身を含む): 370440000

約数和(自身を除く): 209278780

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 349, 698, 1396, 1745, 2099, 3490, 3839, 4198, 6980, 7678, 8396, 10495, 15356, 19195, 20990, 23089, 38390, 41980, 46178, 76780, 92356, 115445, 230890, 461780, 732551, 1465102, 2930204, 3662755, 7325510, 8058061, 14651020, 16116122, 32232244, 40290305, 80580610, 161161220]

約数ペア:

[(1, 161161220), (2, 80580610), (4, 40290305), (5, 32232244), (10, 16116122), (11, 14651020), (20, 8058061), (22, 7325510), (44, 3662755), (55, 2930204), (110, 1465102), (220, 732551), (349, 461780), (698, 230890), (1396, 115445), (1745, 92356), (2099, 76780), (3490, 46178), (3839, 41980), (4198, 38390), (6980, 23089), (7678, 20990), (8396, 19195), (10495, 15356)]