20657117880

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{118801}}^1$

素因数の和:118851

約数の個数: 256

約数和(自身を含む): 82115942400

約数和(自身を除く): 61458824520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 23, 24, 27, 28, 30, 35, 36, 40, 42, 45, 46, 54, 56, 60, 63, 69, 70, 72, 84, 90, 92, 105, 108, 115, 120, 126, 135, 138, 140, 161, 168, 180, 184, 189, 207, 210, 216, 230, 252, 270, 276, 280, 315, 322, 345, 360, 378, 414, 420, 460, 483, 504, 540, 552, 621, 630, 644, 690, 756, 805, 828, 840, 920, 945, 966, 1035, 1080, 1242, 1260, 1288, 1380, 1449, 1512, 1610, 1656, 1890, 1932, 2070, 2415, 2484, 2520, 2760, 2898, 3105, 3220, 3780, 3864, 4140, 4347, 4830, 4968, 5796, 6210, 6440, 7245, 7560, 8280, 8694, 9660, 11592, 12420, 14490, 17388, 19320, 21735, 24840, 28980, 34776, 43470, 57960, 86940, 118801, 173880, 237602, 356403, 475204, 594005, 712806, 831607, 950408, 1069209, 1188010, 1425612, 1663214, 1782015, 2138418, 2376020, 2494821, 2732423, 2851224, 3207627, 3326428, 3564030, 4158035, 4276836, 4752040, 4989642, 5346045, 5464846, 6415254, 6652856, 7128060, 7484463, 8197269, 8316070, 8553672, 9979284, 10692090, 10929692, 12474105, 12830508, 13662115, 14256120, 14968926, 16038135, 16394538, 16632140, 19126961, 19958568, 21384180, 21859384, 22453389, 24591807, 24948210, 25661016, 27324230, 29937852, 32076270, 32789076, 33264280, 37422315, 38253922, 40986345, 42768360, 44906778, 49183614, 49896420, 54648460, 57380883, 59875704, 64152540, 65578152, 73775421, 74844630, 76507844, 81972690, 89813556, 95634805, 98367228, 99792840, 109296920, 112266945, 114761766, 122959035, 128305080, 147550842, 149689260, 153015688, 163945380, 172142649, 179627112, 191269610, 196734456, 224533890, 229523532, 245918070, 286904415, 295101684, 299378520, 327890760, 344285298, 368877105, 382539220, 449067780, 459047064, 491836140, 516427947, 573808830, 590203368, 688570596, 737754210, 765078440, 860713245, 898135560, 983672280, 1032855894, 1147617660, 1377141192, 1475508420, 1721426490, 2065711788, 2295235320, 2582139735, 2951016840, 3442852980, 4131423576, 5164279470, 6885705960, 10328558940, 20657117880]

約数ペア:

[(1, 20657117880), (2, 10328558940), (3, 6885705960), (4, 5164279470), (5, 4131423576), (6, 3442852980), (7, 2951016840), (8, 2582139735), (9, 2295235320), (10, 2065711788), (12, 1721426490), (14, 1475508420), (15, 1377141192), (18, 1147617660), (20, 1032855894), (21, 983672280), (23, 898135560), (24, 860713245), (27, 765078440), (28, 737754210), (30, 688570596), (35, 590203368), (36, 573808830), (40, 516427947), (42, 491836140), (45, 459047064), (46, 449067780), (54, 382539220), (56, 368877105), (60, 344285298), (63, 327890760), (69, 299378520), (70, 295101684), (72, 286904415), (84, 245918070), (90, 229523532), (92, 224533890), (105, 196734456), (108, 191269610), (115, 179627112), (120, 172142649), (126, 163945380), (135, 153015688), (138, 149689260), (140, 147550842), (161, 128305080), (168, 122959035), (180, 114761766), (184, 112266945), (189, 109296920), (207, 99792840), (210, 98367228), (216, 95634805), (230, 89813556), (252, 81972690), (270, 76507844), (276, 74844630), (280, 73775421), (315, 65578152), (322, 64152540), (345, 59875704), (360, 57380883), (378, 54648460), (414, 49896420), (420, 49183614), (460, 44906778), (483, 42768360), (504, 40986345), (540, 38253922), (552, 37422315), (621, 33264280), (630, 32789076), (644, 32076270), (690, 29937852), (756, 27324230), (805, 25661016), (828, 24948210), (840, 24591807), (920, 22453389), (945, 21859384), (966, 21384180), (1035, 19958568), (1080, 19126961), (1242, 16632140), (1260, 16394538), (1288, 16038135), (1380, 14968926), (1449, 14256120), (1512, 13662115), (1610, 12830508), (1656, 12474105), (1890, 10929692), (1932, 10692090), (2070, 9979284), (2415, 8553672), (2484, 8316070), (2520, 8197269), (2760, 7484463), (2898, 7128060), (3105, 6652856), (3220, 6415254), (3780, 5464846), (3864, 5346045), (4140, 4989642), (4347, 4752040), (4830, 4276836), (4968, 4158035), (5796, 3564030), (6210, 3326428), (6440, 3207627), (7245, 2851224), (7560, 2732423), (8280, 2494821), (8694, 2376020), (9660, 2138418), (11592, 1782015), (12420, 1663214), (14490, 1425612), (17388, 1188010), (19320, 1069209), (21735, 950408), (24840, 831607), (28980, 712806), (34776, 594005), (43470, 475204), (57960, 356403), (86940, 237602), (118801, 173880)]