211676530

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1993}}^1$

素因数の和:2075

約数の個数: 64

約数和(自身を含む): 442189440

約数和(自身を除く): 230512910

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 43, 65, 86, 95, 130, 190, 215, 247, 430, 494, 559, 817, 1118, 1235, 1634, 1993, 2470, 2795, 3986, 4085, 5590, 8170, 9965, 10621, 19930, 21242, 25909, 37867, 51818, 53105, 75734, 85699, 106210, 129545, 171398, 189335, 259090, 378670, 428495, 492271, 856990, 984542, 1114087, 1628281, 2228174, 2461355, 3256562, 4922710, 5570435, 8141405, 11140870, 16282810, 21167653, 42335306, 105838265, 211676530]

約数ペア:

[(1, 211676530), (2, 105838265), (5, 42335306), (10, 21167653), (13, 16282810), (19, 11140870), (26, 8141405), (38, 5570435), (43, 4922710), (65, 3256562), (86, 2461355), (95, 2228174), (130, 1628281), (190, 1114087), (215, 984542), (247, 856990), (430, 492271), (494, 428495), (559, 378670), (817, 259090), (1118, 189335), (1235, 171398), (1634, 129545), (1993, 106210), (2470, 85699), (2795, 75734), (3986, 53105), (4085, 51818), (5590, 37867), (8170, 25909), (9965, 21242), (10621, 19930)]