20910960

素因数分解:

$2^4\times 3^4\times 5^1\times 7^1\times {\mathrm{461}}^1$

素因数の和:493

約数の個数: 200

約数和(自身を含む): 83182176

約数和(自身を除く): 62271216

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 81, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 162, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 324, 336, 360, 378, 405, 420, 432, 461, 504, 540, 560, 567, 630, 648, 720, 756, 810, 840, 922, 945, 1008, 1080, 1134, 1260, 1296, 1383, 1512, 1620, 1680, 1844, 1890, 2160, 2268, 2305, 2520, 2766, 2835, 3024, 3227, 3240, 3688, 3780, 4149, 4536, 4610, 5040, 5532, 5670, 6454, 6480, 6915, 7376, 7560, 8298, 9072, 9220, 9681, 11064, 11340, 12447, 12908, 13830, 15120, 16135, 16596, 18440, 19362, 20745, 22128, 22680, 24894, 25816, 27660, 29043, 32270, 33192, 36880, 37341, 38724, 41490, 45360, 48405, 49788, 51632, 55320, 58086, 62235, 64540, 66384, 74682, 77448, 82980, 87129, 96810, 99576, 110640, 116172, 124470, 129080, 145215, 149364, 154896, 165960, 174258, 186705, 193620, 199152, 232344, 248940, 258160, 261387, 290430, 298728, 331920, 348516, 373410, 387240, 435645, 464688, 497880, 522774, 580860, 597456, 697032, 746820, 774480, 871290, 995760, 1045548, 1161720, 1306935, 1394064, 1493640, 1742580, 2091096, 2323440, 2613870, 2987280, 3485160, 4182192, 5227740, 6970320, 10455480, 20910960]

約数ペア:

[(1, 20910960), (2, 10455480), (3, 6970320), (4, 5227740), (5, 4182192), (6, 3485160), (7, 2987280), (8, 2613870), (9, 2323440), (10, 2091096), (12, 1742580), (14, 1493640), (15, 1394064), (16, 1306935), (18, 1161720), (20, 1045548), (21, 995760), (24, 871290), (27, 774480), (28, 746820), (30, 697032), (35, 597456), (36, 580860), (40, 522774), (42, 497880), (45, 464688), (48, 435645), (54, 387240), (56, 373410), (60, 348516), (63, 331920), (70, 298728), (72, 290430), (80, 261387), (81, 258160), (84, 248940), (90, 232344), (105, 199152), (108, 193620), (112, 186705), (120, 174258), (126, 165960), (135, 154896), (140, 149364), (144, 145215), (162, 129080), (168, 124470), (180, 116172), (189, 110640), (210, 99576), (216, 96810), (240, 87129), (252, 82980), (270, 77448), (280, 74682), (315, 66384), (324, 64540), (336, 62235), (360, 58086), (378, 55320), (405, 51632), (420, 49788), (432, 48405), (461, 45360), (504, 41490), (540, 38724), (560, 37341), (567, 36880), (630, 33192), (648, 32270), (720, 29043), (756, 27660), (810, 25816), (840, 24894), (922, 22680), (945, 22128), (1008, 20745), (1080, 19362), (1134, 18440), (1260, 16596), (1296, 16135), (1383, 15120), (1512, 13830), (1620, 12908), (1680, 12447), (1844, 11340), (1890, 11064), (2160, 9681), (2268, 9220), (2305, 9072), (2520, 8298), (2766, 7560), (2835, 7376), (3024, 6915), (3227, 6480), (3240, 6454), (3688, 5670), (3780, 5532), (4149, 5040), (4536, 4610)]