2180425520

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{42787}}^1$

素因数の和:42827

約数の個数: 120

約数和(自身を含む): 6350937264

約数和(自身を除く): 4170511744

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 80, 91, 98, 104, 112, 130, 140, 182, 196, 208, 245, 260, 280, 364, 392, 455, 490, 520, 560, 637, 728, 784, 910, 980, 1040, 1274, 1456, 1820, 1960, 2548, 3185, 3640, 3920, 5096, 6370, 7280, 10192, 12740, 25480, 42787, 50960, 85574, 171148, 213935, 299509, 342296, 427870, 556231, 599018, 684592, 855740, 1112462, 1198036, 1497545, 1711480, 2096563, 2224924, 2396072, 2781155, 2995090, 3422960, 3893617, 4193126, 4449848, 4792144, 5562310, 5990180, 7787234, 8386252, 8899696, 10482815, 11124620, 11980360, 15574468, 16772504, 19468085, 20965630, 22249240, 23960720, 27255319, 31148936, 33545008, 38936170, 41931260, 44498480, 54510638, 62297872, 77872340, 83862520, 109021276, 136276595, 155744680, 167725040, 218042552, 272553190, 311489360, 436085104, 545106380, 1090212760, 2180425520]

約数ペア:

[(1, 2180425520), (2, 1090212760), (4, 545106380), (5, 436085104), (7, 311489360), (8, 272553190), (10, 218042552), (13, 167725040), (14, 155744680), (16, 136276595), (20, 109021276), (26, 83862520), (28, 77872340), (35, 62297872), (40, 54510638), (49, 44498480), (52, 41931260), (56, 38936170), (65, 33545008), (70, 31148936), (80, 27255319), (91, 23960720), (98, 22249240), (104, 20965630), (112, 19468085), (130, 16772504), (140, 15574468), (182, 11980360), (196, 11124620), (208, 10482815), (245, 8899696), (260, 8386252), (280, 7787234), (364, 5990180), (392, 5562310), (455, 4792144), (490, 4449848), (520, 4193126), (560, 3893617), (637, 3422960), (728, 2995090), (784, 2781155), (910, 2396072), (980, 2224924), (1040, 2096563), (1274, 1711480), (1456, 1497545), (1820, 1198036), (1960, 1112462), (2548, 855740), (3185, 684592), (3640, 599018), (3920, 556231), (5096, 427870), (6370, 342296), (7280, 299509), (10192, 213935), (12740, 171148), (25480, 85574), (42787, 50960)]