20488468

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1$

素因数の和:102

約数の個数: 144

約数和(自身を含む): 53089344

約数和(自身を除く): 32600876

約数列:

[1, 2, 4, 7, 11, 13, 14, 17, 22, 26, 28, 34, 43, 44, 49, 52, 68, 77, 86, 91, 98, 119, 143, 154, 172, 182, 187, 196, 221, 238, 286, 301, 308, 364, 374, 442, 473, 476, 539, 559, 572, 602, 637, 731, 748, 833, 884, 946, 1001, 1078, 1118, 1204, 1274, 1309, 1462, 1547, 1666, 1892, 2002, 2107, 2156, 2236, 2431, 2548, 2618, 2924, 3094, 3311, 3332, 3913, 4004, 4214, 4862, 5117, 5236, 6149, 6188, 6622, 7007, 7826, 8041, 8428, 9163, 9503, 9724, 10234, 10829, 12298, 13244, 14014, 15652, 16082, 17017, 18326, 19006, 20468, 21658, 23177, 24596, 27391, 28028, 32164, 34034, 35819, 36652, 38012, 43043, 43316, 46354, 54782, 56287, 66521, 68068, 71638, 86086, 92708, 104533, 109564, 112574, 119119, 133042, 143276, 172172, 209066, 225148, 238238, 266084, 301301, 394009, 418132, 465647, 476476, 602602, 731731, 788018, 931294, 1205204, 1463462, 1576036, 1862588, 2926924, 5122117, 10244234, 20488468]

約数ペア:

[(1, 20488468), (2, 10244234), (4, 5122117), (7, 2926924), (11, 1862588), (13, 1576036), (14, 1463462), (17, 1205204), (22, 931294), (26, 788018), (28, 731731), (34, 602602), (43, 476476), (44, 465647), (49, 418132), (52, 394009), (68, 301301), (77, 266084), (86, 238238), (91, 225148), (98, 209066), (119, 172172), (143, 143276), (154, 133042), (172, 119119), (182, 112574), (187, 109564), (196, 104533), (221, 92708), (238, 86086), (286, 71638), (301, 68068), (308, 66521), (364, 56287), (374, 54782), (442, 46354), (473, 43316), (476, 43043), (539, 38012), (559, 36652), (572, 35819), (602, 34034), (637, 32164), (731, 28028), (748, 27391), (833, 24596), (884, 23177), (946, 21658), (1001, 20468), (1078, 19006), (1118, 18326), (1204, 17017), (1274, 16082), (1309, 15652), (1462, 14014), (1547, 13244), (1666, 12298), (1892, 10829), (2002, 10234), (2107, 9724), (2156, 9503), (2236, 9163), (2431, 8428), (2548, 8041), (2618, 7826), (2924, 7007), (3094, 6622), (3311, 6188), (3332, 6149), (3913, 5236), (4004, 5117), (4214, 4862)]