18661040

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{12277}}^1$

素因数の和:12309

約数の個数: 40

約数和(自身を含む): 45674160

約数和(自身を除く): 27013120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 12277, 24554, 49108, 61385, 98216, 122770, 196432, 233263, 245540, 466526, 491080, 933052, 982160, 1166315, 1866104, 2332630, 3732208, 4665260, 9330520, 18661040]

約数ペア:

[(1, 18661040), (2, 9330520), (4, 4665260), (5, 3732208), (8, 2332630), (10, 1866104), (16, 1166315), (19, 982160), (20, 933052), (38, 491080), (40, 466526), (76, 245540), (80, 233263), (95, 196432), (152, 122770), (190, 98216), (304, 61385), (380, 49108), (760, 24554), (1520, 12277)]