20356028

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:147

約数の個数: 96

約数和(自身を含む): 47900160

約数和(自身を除く): 27544132

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 29, 43, 44, 53, 58, 77, 86, 106, 116, 154, 172, 203, 212, 301, 308, 319, 371, 406, 473, 583, 602, 638, 742, 812, 946, 1166, 1204, 1247, 1276, 1484, 1537, 1892, 2233, 2279, 2332, 2494, 3074, 3311, 4081, 4466, 4558, 4988, 6148, 6622, 8162, 8729, 8932, 9116, 10759, 13244, 13717, 15953, 16324, 16907, 17458, 21518, 25069, 27434, 31906, 33814, 34916, 43036, 50138, 54868, 63812, 66091, 67628, 96019, 100276, 118349, 132182, 175483, 192038, 236698, 264364, 350966, 384076, 462637, 473396, 701932, 727001, 925274, 1454002, 1850548, 2908004, 5089007, 10178014, 20356028]

約数ペア:

[(1, 20356028), (2, 10178014), (4, 5089007), (7, 2908004), (11, 1850548), (14, 1454002), (22, 925274), (28, 727001), (29, 701932), (43, 473396), (44, 462637), (53, 384076), (58, 350966), (77, 264364), (86, 236698), (106, 192038), (116, 175483), (154, 132182), (172, 118349), (203, 100276), (212, 96019), (301, 67628), (308, 66091), (319, 63812), (371, 54868), (406, 50138), (473, 43036), (583, 34916), (602, 33814), (638, 31906), (742, 27434), (812, 25069), (946, 21518), (1166, 17458), (1204, 16907), (1247, 16324), (1276, 15953), (1484, 13717), (1537, 13244), (1892, 10759), (2233, 9116), (2279, 8932), (2332, 8729), (2494, 8162), (3074, 6622), (3311, 6148), (4081, 4988), (4466, 4558)]