28241780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{3307}}^1$

素因数の和:3384

約数の個数: 48

約数和(自身を含む): 68912256

約数和(自身を除く): 40670476

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 427, 610, 854, 1220, 1708, 2135, 3307, 4270, 6614, 8540, 13228, 16535, 23149, 33070, 46298, 66140, 92596, 115745, 201727, 231490, 403454, 462980, 806908, 1008635, 1412089, 2017270, 2824178, 4034540, 5648356, 7060445, 14120890, 28241780]

約数ペア:

[(1, 28241780), (2, 14120890), (4, 7060445), (5, 5648356), (7, 4034540), (10, 2824178), (14, 2017270), (20, 1412089), (28, 1008635), (35, 806908), (61, 462980), (70, 403454), (122, 231490), (140, 201727), (244, 115745), (305, 92596), (427, 66140), (610, 46298), (854, 33070), (1220, 23149), (1708, 16535), (2135, 13228), (3307, 8540), (4270, 6614)]