20187573644

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{131303}}^1$

素因数の和:131367

約数の個数: 72

約数和(自身を含む): 45147567360

約数和(自身を除く): 24959993716

約数列:

[1, 2, 4, 7, 14, 17, 19, 28, 34, 38, 68, 76, 119, 133, 238, 266, 289, 323, 476, 532, 578, 646, 1156, 1292, 2023, 2261, 4046, 4522, 5491, 8092, 9044, 10982, 21964, 38437, 76874, 131303, 153748, 262606, 525212, 919121, 1838242, 2232151, 2494757, 3676484, 4464302, 4989514, 8928604, 9979028, 15625057, 17463299, 31250114, 34926598, 37946567, 42410869, 62500228, 69853196, 75893134, 84821738, 151786268, 169643476, 265625969, 296876083, 531251938, 593752166, 720984773, 1062503876, 1187504332, 1441969546, 2883939092, 5046893411, 10093786822, 20187573644]

約数ペア:

[(1, 20187573644), (2, 10093786822), (4, 5046893411), (7, 2883939092), (14, 1441969546), (17, 1187504332), (19, 1062503876), (28, 720984773), (34, 593752166), (38, 531251938), (68, 296876083), (76, 265625969), (119, 169643476), (133, 151786268), (238, 84821738), (266, 75893134), (289, 69853196), (323, 62500228), (476, 42410869), (532, 37946567), (578, 34926598), (646, 31250114), (1156, 17463299), (1292, 15625057), (2023, 9979028), (2261, 8928604), (4046, 4989514), (4522, 4464302), (5491, 3676484), (8092, 2494757), (9044, 2232151), (10982, 1838242), (21964, 919121), (38437, 525212), (76874, 262606), (131303, 153748)]