20123557540

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{191}}^1\times {\mathrm{46619}}^1$

素因数の和:46932

約数の個数: 48

約数和(自身を含む): 42857579520

約数和(自身を除く): 22734021980

約数列:

[1, 2, 4, 5, 10, 20, 113, 191, 226, 382, 452, 565, 764, 955, 1130, 1910, 2260, 3820, 21583, 43166, 46619, 86332, 93238, 107915, 186476, 215830, 233095, 431660, 466190, 932380, 5267947, 8904229, 10535894, 17808458, 21071788, 26339735, 35616916, 44521145, 52679470, 89042290, 105358940, 178084580, 1006177877, 2012355754, 4024711508, 5030889385, 10061778770, 20123557540]

約数ペア:

[(1, 20123557540), (2, 10061778770), (4, 5030889385), (5, 4024711508), (10, 2012355754), (20, 1006177877), (113, 178084580), (191, 105358940), (226, 89042290), (382, 52679470), (452, 44521145), (565, 35616916), (764, 26339735), (955, 21071788), (1130, 17808458), (1910, 10535894), (2260, 8904229), (3820, 5267947), (21583, 932380), (43166, 466190), (46619, 431660), (86332, 233095), (93238, 215830), (107915, 186476)]