25490960

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{349}}^1$

素因数の和:456

約数の個数: 80

約数和(自身を含む): 65620800

約数和(自身を除く): 40129840

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 83, 88, 110, 166, 176, 220, 332, 349, 415, 440, 664, 698, 830, 880, 913, 1328, 1396, 1660, 1745, 1826, 2792, 3320, 3490, 3652, 3839, 4565, 5584, 6640, 6980, 7304, 7678, 9130, 13960, 14608, 15356, 18260, 19195, 27920, 28967, 30712, 36520, 38390, 57934, 61424, 73040, 76780, 115868, 144835, 153560, 231736, 289670, 307120, 318637, 463472, 579340, 637274, 1158680, 1274548, 1593185, 2317360, 2549096, 3186370, 5098192, 6372740, 12745480, 25490960]

約数ペア:

[(1, 25490960), (2, 12745480), (4, 6372740), (5, 5098192), (8, 3186370), (10, 2549096), (11, 2317360), (16, 1593185), (20, 1274548), (22, 1158680), (40, 637274), (44, 579340), (55, 463472), (80, 318637), (83, 307120), (88, 289670), (110, 231736), (166, 153560), (176, 144835), (220, 115868), (332, 76780), (349, 73040), (415, 61424), (440, 57934), (664, 38390), (698, 36520), (830, 30712), (880, 28967), (913, 27920), (1328, 19195), (1396, 18260), (1660, 15356), (1745, 14608), (1826, 13960), (2792, 9130), (3320, 7678), (3490, 7304), (3652, 6980), (3839, 6640), (4565, 5584)]