20116416520

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{1759}}^1$

素因数の和:1983

約数の個数: 128

約数和(自身を含む): 47532672000

約数和(自身を除く): 27416255480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 61, 86, 109, 122, 172, 215, 218, 244, 305, 344, 430, 436, 488, 545, 610, 860, 872, 1090, 1220, 1720, 1759, 2180, 2440, 2623, 3518, 4360, 4687, 5246, 6649, 7036, 8795, 9374, 10492, 13115, 13298, 14072, 17590, 18748, 20984, 23435, 26230, 26596, 33245, 35180, 37496, 46870, 52460, 53192, 66490, 70360, 75637, 93740, 104920, 107299, 132980, 151274, 187480, 191731, 214598, 265960, 285907, 302548, 378185, 383462, 429196, 536495, 571814, 605096, 756370, 766924, 858392, 958655, 1072990, 1143628, 1429535, 1512740, 1533848, 1917310, 2145980, 2287256, 2859070, 3025480, 3834620, 4291960, 4613857, 5718140, 7669240, 8244433, 9227714, 11436280, 11695591, 16488866, 18455428, 23069285, 23391182, 32977732, 36910856, 41222165, 46138570, 46782364, 58477955, 65955464, 82444330, 92277140, 93564728, 116955910, 164888660, 184554280, 233911820, 329777320, 467823640, 502910413, 1005820826, 2011641652, 2514552065, 4023283304, 5029104130, 10058208260, 20116416520]

約数ペア:

[(1, 20116416520), (2, 10058208260), (4, 5029104130), (5, 4023283304), (8, 2514552065), (10, 2011641652), (20, 1005820826), (40, 502910413), (43, 467823640), (61, 329777320), (86, 233911820), (109, 184554280), (122, 164888660), (172, 116955910), (215, 93564728), (218, 92277140), (244, 82444330), (305, 65955464), (344, 58477955), (430, 46782364), (436, 46138570), (488, 41222165), (545, 36910856), (610, 32977732), (860, 23391182), (872, 23069285), (1090, 18455428), (1220, 16488866), (1720, 11695591), (1759, 11436280), (2180, 9227714), (2440, 8244433), (2623, 7669240), (3518, 5718140), (4360, 4613857), (4687, 4291960), (5246, 3834620), (6649, 3025480), (7036, 2859070), (8795, 2287256), (9374, 2145980), (10492, 1917310), (13115, 1533848), (13298, 1512740), (14072, 1429535), (17590, 1143628), (18748, 1072990), (20984, 958655), (23435, 858392), (26230, 766924), (26596, 756370), (33245, 605096), (35180, 571814), (37496, 536495), (46870, 429196), (52460, 383462), (53192, 378185), (66490, 302548), (70360, 285907), (75637, 265960), (93740, 214598), (104920, 191731), (107299, 187480), (132980, 151274)]