20390084

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{829}}^1$

素因数の和:900

約数の個数: 48

約数和(自身を含む): 42947520

約数和(自身を除く): 22557436

約数列:

[1, 2, 4, 11, 13, 22, 26, 43, 44, 52, 86, 143, 172, 286, 473, 559, 572, 829, 946, 1118, 1658, 1892, 2236, 3316, 6149, 9119, 10777, 12298, 18238, 21554, 24596, 35647, 36476, 43108, 71294, 118547, 142588, 237094, 392117, 463411, 474188, 784234, 926822, 1568468, 1853644, 5097521, 10195042, 20390084]

約数ペア:

[(1, 20390084), (2, 10195042), (4, 5097521), (11, 1853644), (13, 1568468), (22, 926822), (26, 784234), (43, 474188), (44, 463411), (52, 392117), (86, 237094), (143, 142588), (172, 118547), (286, 71294), (473, 43108), (559, 36476), (572, 35647), (829, 24596), (946, 21554), (1118, 18238), (1658, 12298), (1892, 10777), (2236, 9119), (3316, 6149)]