2080755920

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{292241}}^1$

素因数の和:292343

約数の個数: 40

約数和(自身を含む): 4892131080

約数和(自身を除く): 2811375160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 292241, 584482, 1168964, 1461205, 2337928, 2922410, 4675856, 5844820, 11689640, 23379280, 26009449, 52018898, 104037796, 130047245, 208075592, 260094490, 416151184, 520188980, 1040377960, 2080755920]

約数ペア:

[(1, 2080755920), (2, 1040377960), (4, 520188980), (5, 416151184), (8, 260094490), (10, 208075592), (16, 130047245), (20, 104037796), (40, 52018898), (80, 26009449), (89, 23379280), (178, 11689640), (356, 5844820), (445, 4675856), (712, 2922410), (890, 2337928), (1424, 1461205), (1780, 1168964), (3560, 584482), (7120, 292241)]