81610620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{14947}}^1$

素因数の和:14979

約数の個数: 96

約数和(自身を含む): 281261568

約数和(自身を除く): 199650948

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 182, 195, 210, 260, 273, 364, 390, 420, 455, 546, 780, 910, 1092, 1365, 1820, 2730, 5460, 14947, 29894, 44841, 59788, 74735, 89682, 104629, 149470, 179364, 194311, 209258, 224205, 298940, 313887, 388622, 418516, 448410, 523145, 582933, 627774, 777244, 896820, 971555, 1046290, 1165866, 1255548, 1360177, 1569435, 1943110, 2092580, 2331732, 2720354, 2914665, 3138870, 3886220, 4080531, 5440708, 5829330, 6277740, 6800885, 8161062, 11658660, 13601770, 16322124, 20402655, 27203540, 40805310, 81610620]

約数ペア:

[(1, 81610620), (2, 40805310), (3, 27203540), (4, 20402655), (5, 16322124), (6, 13601770), (7, 11658660), (10, 8161062), (12, 6800885), (13, 6277740), (14, 5829330), (15, 5440708), (20, 4080531), (21, 3886220), (26, 3138870), (28, 2914665), (30, 2720354), (35, 2331732), (39, 2092580), (42, 1943110), (52, 1569435), (60, 1360177), (65, 1255548), (70, 1165866), (78, 1046290), (84, 971555), (91, 896820), (105, 777244), (130, 627774), (140, 582933), (156, 523145), (182, 448410), (195, 418516), (210, 388622), (260, 313887), (273, 298940), (364, 224205), (390, 209258), (420, 194311), (455, 179364), (546, 149470), (780, 104629), (910, 89682), (1092, 74735), (1365, 59788), (1820, 44841), (2730, 29894), (5460, 14947)]