20450144

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1$

素因数の和:184

約数の個数: 96

約数和(自身を含む): 48898080

約数和(自身を除く): 28447936

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 32, 41, 44, 52, 82, 88, 104, 109, 143, 164, 176, 208, 218, 286, 328, 352, 416, 436, 451, 533, 572, 656, 872, 902, 1066, 1144, 1199, 1312, 1417, 1744, 1804, 2132, 2288, 2398, 2834, 3488, 3608, 4264, 4469, 4576, 4796, 5668, 5863, 7216, 8528, 8938, 9592, 11336, 11726, 14432, 15587, 17056, 17876, 19184, 22672, 23452, 31174, 35752, 38368, 45344, 46904, 49159, 58097, 62348, 71504, 93808, 98318, 116194, 124696, 143008, 187616, 196636, 232388, 249392, 393272, 464776, 498784, 639067, 786544, 929552, 1278134, 1573088, 1859104, 2556268, 5112536, 10225072, 20450144]

約数ペア:

[(1, 20450144), (2, 10225072), (4, 5112536), (8, 2556268), (11, 1859104), (13, 1573088), (16, 1278134), (22, 929552), (26, 786544), (32, 639067), (41, 498784), (44, 464776), (52, 393272), (82, 249392), (88, 232388), (104, 196636), (109, 187616), (143, 143008), (164, 124696), (176, 116194), (208, 98318), (218, 93808), (286, 71504), (328, 62348), (352, 58097), (416, 49159), (436, 46904), (451, 45344), (533, 38368), (572, 35752), (656, 31174), (872, 23452), (902, 22672), (1066, 19184), (1144, 17876), (1199, 17056), (1312, 15587), (1417, 14432), (1744, 11726), (1804, 11336), (2132, 9592), (2288, 8938), (2398, 8528), (2834, 7216), (3488, 5863), (3608, 5668), (4264, 4796), (4469, 4576)]