254090340

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{479}}^1$

素因数の和:922

約数の個数: 144

約数和(自身を含む): 884782080

約数和(自身を除く): 630691740

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 421, 479, 630, 842, 958, 1260, 1263, 1437, 1684, 1916, 2105, 2395, 2526, 2874, 2947, 3353, 3789, 4210, 4311, 4790, 5052, 5748, 5894, 6315, 6706, 7185, 7578, 8420, 8622, 8841, 9580, 10059, 11788, 12630, 13412, 14370, 14735, 15156, 16765, 17244, 17682, 18945, 20118, 21555, 25260, 26523, 28740, 29470, 30177, 33530, 35364, 37890, 40236, 43110, 44205, 50295, 53046, 58940, 60354, 67060, 75780, 86220, 88410, 100590, 106092, 120708, 132615, 150885, 176820, 201180, 201659, 265230, 301770, 403318, 530460, 603540, 604977, 806636, 1008295, 1209954, 1411613, 1814931, 2016590, 2419908, 2823226, 3024885, 3629862, 4033180, 4234839, 5646452, 6049770, 7058065, 7259724, 8469678, 9074655, 12099540, 12704517, 14116130, 16939356, 18149310, 21174195, 25409034, 28232260, 36298620, 42348390, 50818068, 63522585, 84696780, 127045170, 254090340]

約数ペア:

[(1, 254090340), (2, 127045170), (3, 84696780), (4, 63522585), (5, 50818068), (6, 42348390), (7, 36298620), (9, 28232260), (10, 25409034), (12, 21174195), (14, 18149310), (15, 16939356), (18, 14116130), (20, 12704517), (21, 12099540), (28, 9074655), (30, 8469678), (35, 7259724), (36, 7058065), (42, 6049770), (45, 5646452), (60, 4234839), (63, 4033180), (70, 3629862), (84, 3024885), (90, 2823226), (105, 2419908), (126, 2016590), (140, 1814931), (180, 1411613), (210, 1209954), (252, 1008295), (315, 806636), (420, 604977), (421, 603540), (479, 530460), (630, 403318), (842, 301770), (958, 265230), (1260, 201659), (1263, 201180), (1437, 176820), (1684, 150885), (1916, 132615), (2105, 120708), (2395, 106092), (2526, 100590), (2874, 88410), (2947, 86220), (3353, 75780), (3789, 67060), (4210, 60354), (4311, 58940), (4790, 53046), (5052, 50295), (5748, 44205), (5894, 43110), (6315, 40236), (6706, 37890), (7185, 35364), (7578, 33530), (8420, 30177), (8622, 29470), (8841, 28740), (9580, 26523), (10059, 25260), (11788, 21555), (12630, 20118), (13412, 18945), (14370, 17682), (14735, 17244), (15156, 16765)]