138631920

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{461}}^1$

素因数の和:663

約数の個数: 160

約数和(自身を含む): 494968320

約数和(自身を除く): 356336400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 179, 210, 240, 280, 336, 358, 420, 461, 537, 560, 716, 840, 895, 922, 1074, 1253, 1383, 1432, 1680, 1790, 1844, 2148, 2305, 2506, 2685, 2766, 2864, 3227, 3580, 3688, 3759, 4296, 4610, 5012, 5370, 5532, 6265, 6454, 6915, 7160, 7376, 7518, 8592, 9220, 9681, 10024, 10740, 11064, 12530, 12908, 13830, 14320, 15036, 16135, 18440, 18795, 19362, 20048, 21480, 22128, 25060, 25816, 27660, 30072, 32270, 36880, 37590, 38724, 42960, 48405, 50120, 51632, 55320, 60144, 64540, 75180, 77448, 82519, 96810, 100240, 110640, 129080, 150360, 154896, 165038, 193620, 247557, 258160, 300720, 330076, 387240, 412595, 495114, 577633, 660152, 774480, 825190, 990228, 1155266, 1237785, 1320304, 1650380, 1732899, 1980456, 2310532, 2475570, 2888165, 3300760, 3465798, 3960912, 4621064, 4951140, 5776330, 6601520, 6931596, 8664495, 9242128, 9902280, 11552660, 13863192, 17328990, 19804560, 23105320, 27726384, 34657980, 46210640, 69315960, 138631920]

約数ペア:

[(1, 138631920), (2, 69315960), (3, 46210640), (4, 34657980), (5, 27726384), (6, 23105320), (7, 19804560), (8, 17328990), (10, 13863192), (12, 11552660), (14, 9902280), (15, 9242128), (16, 8664495), (20, 6931596), (21, 6601520), (24, 5776330), (28, 4951140), (30, 4621064), (35, 3960912), (40, 3465798), (42, 3300760), (48, 2888165), (56, 2475570), (60, 2310532), (70, 1980456), (80, 1732899), (84, 1650380), (105, 1320304), (112, 1237785), (120, 1155266), (140, 990228), (168, 825190), (179, 774480), (210, 660152), (240, 577633), (280, 495114), (336, 412595), (358, 387240), (420, 330076), (461, 300720), (537, 258160), (560, 247557), (716, 193620), (840, 165038), (895, 154896), (922, 150360), (1074, 129080), (1253, 110640), (1383, 100240), (1432, 96810), (1680, 82519), (1790, 77448), (1844, 75180), (2148, 64540), (2305, 60144), (2506, 55320), (2685, 51632), (2766, 50120), (2864, 48405), (3227, 42960), (3580, 38724), (3688, 37590), (3759, 36880), (4296, 32270), (4610, 30072), (5012, 27660), (5370, 25816), (5532, 25060), (6265, 22128), (6454, 21480), (6915, 20048), (7160, 19362), (7376, 18795), (7518, 18440), (8592, 16135), (9220, 15036), (9681, 14320), (10024, 13830), (10740, 12908), (11064, 12530)]