81977742

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{283}}^1$

素因数の和:339

約数の個数: 144

約数和(自身を含む): 235697280

約数和(自身を除く): 153719538

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 19, 21, 22, 33, 38, 42, 57, 63, 66, 77, 99, 114, 121, 126, 133, 154, 171, 198, 209, 231, 242, 266, 283, 342, 363, 399, 418, 462, 566, 627, 693, 726, 798, 847, 849, 1089, 1197, 1254, 1386, 1463, 1694, 1698, 1881, 1981, 2178, 2299, 2394, 2541, 2547, 2926, 3113, 3762, 3962, 4389, 4598, 5082, 5094, 5377, 5943, 6226, 6897, 7623, 8778, 9339, 10754, 11886, 13167, 13794, 15246, 16093, 16131, 17829, 18678, 20691, 21791, 26334, 28017, 32186, 32262, 34243, 35658, 37639, 41382, 43582, 48279, 48393, 56034, 59147, 65373, 68486, 75278, 96558, 96786, 102729, 112917, 118294, 130746, 144837, 177441, 196119, 205458, 225834, 239701, 289674, 308187, 338751, 354882, 392238, 414029, 479402, 532323, 616374, 650617, 677502, 719103, 828058, 1064646, 1242087, 1301234, 1438206, 1951851, 2157309, 2484174, 3726261, 3903702, 4314618, 4554319, 5855553, 7452522, 9108638, 11711106, 13662957, 27325914, 40988871, 81977742]

約数ペア:

[(1, 81977742), (2, 40988871), (3, 27325914), (6, 13662957), (7, 11711106), (9, 9108638), (11, 7452522), (14, 5855553), (18, 4554319), (19, 4314618), (21, 3903702), (22, 3726261), (33, 2484174), (38, 2157309), (42, 1951851), (57, 1438206), (63, 1301234), (66, 1242087), (77, 1064646), (99, 828058), (114, 719103), (121, 677502), (126, 650617), (133, 616374), (154, 532323), (171, 479402), (198, 414029), (209, 392238), (231, 354882), (242, 338751), (266, 308187), (283, 289674), (342, 239701), (363, 225834), (399, 205458), (418, 196119), (462, 177441), (566, 144837), (627, 130746), (693, 118294), (726, 112917), (798, 102729), (847, 96786), (849, 96558), (1089, 75278), (1197, 68486), (1254, 65373), (1386, 59147), (1463, 56034), (1694, 48393), (1698, 48279), (1881, 43582), (1981, 41382), (2178, 37639), (2299, 35658), (2394, 34243), (2541, 32262), (2547, 32186), (2926, 28017), (3113, 26334), (3762, 21791), (3962, 20691), (4389, 18678), (4598, 17829), (5082, 16131), (5094, 16093), (5377, 15246), (5943, 13794), (6226, 13167), (6897, 11886), (7623, 10754), (8778, 9339)]