27830052580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{1421351}}^1$

素因数の和:1421460

約数の個数: 48

約数和(自身を含む): 64472526720

約数和(自身を除く): 36642474140

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 178, 220, 356, 445, 890, 979, 1780, 1958, 3916, 4895, 9790, 19580, 1421351, 2842702, 5685404, 7106755, 14213510, 15634861, 28427020, 31269722, 62539444, 78174305, 126500239, 156348610, 253000478, 312697220, 506000956, 632501195, 1265002390, 1391502629, 2530004780, 2783005258, 5566010516, 6957513145, 13915026290, 27830052580]

約数ペア:

[(1, 27830052580), (2, 13915026290), (4, 6957513145), (5, 5566010516), (10, 2783005258), (11, 2530004780), (20, 1391502629), (22, 1265002390), (44, 632501195), (55, 506000956), (89, 312697220), (110, 253000478), (178, 156348610), (220, 126500239), (356, 78174305), (445, 62539444), (890, 31269722), (979, 28427020), (1780, 15634861), (1958, 14213510), (3916, 7106755), (4895, 5685404), (9790, 2842702), (19580, 1421351)]