25957724

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:139

約数の個数: 72

約数和(自身を含む): 54109440

約数和(自身を除く): 28151716

約数列:

[1, 2, 4, 13, 19, 26, 38, 43, 47, 52, 76, 86, 94, 169, 172, 188, 247, 338, 494, 559, 611, 676, 817, 893, 988, 1118, 1222, 1634, 1786, 2021, 2236, 2444, 3211, 3268, 3572, 4042, 6422, 7267, 7943, 8084, 10621, 11609, 12844, 14534, 15886, 21242, 23218, 26273, 29068, 31772, 38399, 42484, 46436, 52546, 76798, 105092, 138073, 150917, 153596, 276146, 301834, 341549, 499187, 552292, 603668, 683098, 998374, 1366196, 1996748, 6489431, 12978862, 25957724]

約数ペア:

[(1, 25957724), (2, 12978862), (4, 6489431), (13, 1996748), (19, 1366196), (26, 998374), (38, 683098), (43, 603668), (47, 552292), (52, 499187), (76, 341549), (86, 301834), (94, 276146), (169, 153596), (172, 150917), (188, 138073), (247, 105092), (338, 76798), (494, 52546), (559, 46436), (611, 42484), (676, 38399), (817, 31772), (893, 29068), (988, 26273), (1118, 23218), (1222, 21242), (1634, 15886), (1786, 14534), (2021, 12844), (2236, 11609), (2444, 10621), (3211, 8084), (3268, 7943), (3572, 7267), (4042, 6422)]