201782980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{1889}}^1$

素因数の和:2021

約数の個数: 72

約数和(自身を含む): 497712600

約数和(自身を除く): 295929620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 109, 140, 196, 218, 245, 436, 490, 545, 763, 980, 1090, 1526, 1889, 2180, 3052, 3778, 3815, 5341, 7556, 7630, 9445, 10682, 13223, 15260, 18890, 21364, 26446, 26705, 37780, 52892, 53410, 66115, 92561, 106820, 132230, 185122, 205901, 264460, 370244, 411802, 462805, 823604, 925610, 1029505, 1441307, 1851220, 2059010, 2882614, 4118020, 5765228, 7206535, 10089149, 14413070, 20178298, 28826140, 40356596, 50445745, 100891490, 201782980]

約数ペア:

[(1, 201782980), (2, 100891490), (4, 50445745), (5, 40356596), (7, 28826140), (10, 20178298), (14, 14413070), (20, 10089149), (28, 7206535), (35, 5765228), (49, 4118020), (70, 2882614), (98, 2059010), (109, 1851220), (140, 1441307), (196, 1029505), (218, 925610), (245, 823604), (436, 462805), (490, 411802), (545, 370244), (763, 264460), (980, 205901), (1090, 185122), (1526, 132230), (1889, 106820), (2180, 92561), (3052, 66115), (3778, 53410), (3815, 52892), (5341, 37780), (7556, 26705), (7630, 26446), (9445, 21364), (10682, 18890), (13223, 15260)]