25108538

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1$

素因数の和:231

約数の個数: 64

約数和(自身を含む): 50077440

約数和(自身を除く): 24968902

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 53, 91, 106, 133, 137, 182, 247, 266, 274, 371, 494, 689, 742, 959, 1007, 1378, 1729, 1781, 1918, 2014, 2603, 3458, 3562, 4823, 5206, 7049, 7261, 9646, 12467, 13091, 14098, 14522, 18221, 24934, 26182, 33839, 36442, 50827, 67678, 91637, 94393, 101654, 137959, 183274, 188786, 236873, 275918, 473746, 660751, 965713, 1321502, 1793467, 1931426, 3586934, 12554269, 25108538]

約数ペア:

[(1, 25108538), (2, 12554269), (7, 3586934), (13, 1931426), (14, 1793467), (19, 1321502), (26, 965713), (38, 660751), (53, 473746), (91, 275918), (106, 236873), (133, 188786), (137, 183274), (182, 137959), (247, 101654), (266, 94393), (274, 91637), (371, 67678), (494, 50827), (689, 36442), (742, 33839), (959, 26182), (1007, 24934), (1378, 18221), (1729, 14522), (1781, 14098), (1918, 13091), (2014, 12467), (2603, 9646), (3458, 7261), (3562, 7049), (4823, 5206)]