2016181970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{5023}}^1$

素因数の和:5171

約数の個数: 64

約数和(自身を含む): 4101995520

約数和(自身を除く): 2085813550

約数列:

[1, 2, 5, 10, 11, 22, 41, 55, 82, 89, 110, 178, 205, 410, 445, 451, 890, 902, 979, 1958, 2255, 3649, 4510, 4895, 5023, 7298, 9790, 10046, 18245, 25115, 36490, 40139, 50230, 55253, 80278, 110506, 200695, 205943, 276265, 401390, 411886, 447047, 552530, 894094, 1029715, 2059430, 2235235, 2265373, 4470470, 4530746, 4917517, 9835034, 11326865, 18328927, 22653730, 24587585, 36657854, 49175170, 91644635, 183289270, 201618197, 403236394, 1008090985, 2016181970]

約数ペア:

[(1, 2016181970), (2, 1008090985), (5, 403236394), (10, 201618197), (11, 183289270), (22, 91644635), (41, 49175170), (55, 36657854), (82, 24587585), (89, 22653730), (110, 18328927), (178, 11326865), (205, 9835034), (410, 4917517), (445, 4530746), (451, 4470470), (890, 2265373), (902, 2235235), (979, 2059430), (1958, 1029715), (2255, 894094), (3649, 552530), (4510, 447047), (4895, 411886), (5023, 401390), (7298, 276265), (9790, 205943), (10046, 200695), (18245, 110506), (25115, 80278), (36490, 55253), (40139, 50230)]