20138405560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{337}}^1\times {\mathrm{16417}}^1$

素因数の和:16785

約数の個数: 128

約数和(自身を含む): 55936782720

約数和(自身を除く): 35798377160

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 337, 364, 455, 520, 674, 728, 910, 1348, 1685, 1820, 2359, 2696, 3370, 3640, 4381, 4718, 6740, 8762, 9436, 11795, 13480, 16417, 17524, 18872, 21905, 23590, 30667, 32834, 35048, 43810, 47180, 61334, 65668, 82085, 87620, 94360, 114919, 122668, 131336, 153335, 164170, 175240, 213421, 229838, 245336, 306670, 328340, 426842, 459676, 574595, 613340, 656680, 853684, 919352, 1067105, 1149190, 1226680, 1493947, 1707368, 2134210, 2298380, 2987894, 4268420, 4596760, 5532529, 5975788, 7469735, 8536840, 11065058, 11951576, 14939470, 22130116, 27662645, 29878940, 38727703, 44260232, 55325290, 59757880, 71922877, 77455406, 110650580, 143845754, 154910812, 193638515, 221301160, 287691508, 309821624, 359614385, 387277030, 503460139, 575383016, 719228770, 774554060, 1006920278, 1438457540, 1549108120, 2013840556, 2517300695, 2876915080, 4027681112, 5034601390, 10069202780, 20138405560]

約数ペア:

[(1, 20138405560), (2, 10069202780), (4, 5034601390), (5, 4027681112), (7, 2876915080), (8, 2517300695), (10, 2013840556), (13, 1549108120), (14, 1438457540), (20, 1006920278), (26, 774554060), (28, 719228770), (35, 575383016), (40, 503460139), (52, 387277030), (56, 359614385), (65, 309821624), (70, 287691508), (91, 221301160), (104, 193638515), (130, 154910812), (140, 143845754), (182, 110650580), (260, 77455406), (280, 71922877), (337, 59757880), (364, 55325290), (455, 44260232), (520, 38727703), (674, 29878940), (728, 27662645), (910, 22130116), (1348, 14939470), (1685, 11951576), (1820, 11065058), (2359, 8536840), (2696, 7469735), (3370, 5975788), (3640, 5532529), (4381, 4596760), (4718, 4268420), (6740, 2987894), (8762, 2298380), (9436, 2134210), (11795, 1707368), (13480, 1493947), (16417, 1226680), (17524, 1149190), (18872, 1067105), (21905, 919352), (23590, 853684), (30667, 656680), (32834, 613340), (35048, 574595), (43810, 459676), (47180, 426842), (61334, 328340), (65668, 306670), (82085, 245336), (87620, 229838), (94360, 213421), (114919, 175240), (122668, 164170), (131336, 153335)]