161885776

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1$

素因数の和:213

約数の個数: 120

約数和(自身を含む): 375779520

約数和(自身を除く): 213893744

約数列:

[1, 2, 4, 8, 13, 16, 19, 23, 26, 38, 46, 52, 76, 92, 104, 137, 152, 169, 184, 208, 247, 274, 299, 304, 338, 368, 437, 494, 548, 598, 676, 874, 988, 1096, 1196, 1352, 1748, 1781, 1976, 2192, 2392, 2603, 2704, 3151, 3211, 3496, 3562, 3887, 3952, 4784, 5206, 5681, 6302, 6422, 6992, 7124, 7774, 10412, 11362, 12604, 12844, 14248, 15548, 20824, 22724, 23153, 25208, 25688, 28496, 31096, 33839, 40963, 41648, 45448, 46306, 50416, 51376, 59869, 62192, 67678, 73853, 81926, 90896, 92612, 119738, 135356, 147706, 163852, 185224, 239476, 270712, 295412, 327704, 370448, 439907, 478952, 532519, 541424, 590824, 655408, 778297, 879814, 957904, 1065038, 1181648, 1556594, 1759628, 2130076, 3113188, 3519256, 4260152, 6226376, 7038512, 8520304, 10117861, 12452752, 20235722, 40471444, 80942888, 161885776]

約数ペア:

[(1, 161885776), (2, 80942888), (4, 40471444), (8, 20235722), (13, 12452752), (16, 10117861), (19, 8520304), (23, 7038512), (26, 6226376), (38, 4260152), (46, 3519256), (52, 3113188), (76, 2130076), (92, 1759628), (104, 1556594), (137, 1181648), (152, 1065038), (169, 957904), (184, 879814), (208, 778297), (247, 655408), (274, 590824), (299, 541424), (304, 532519), (338, 478952), (368, 439907), (437, 370448), (494, 327704), (548, 295412), (598, 270712), (676, 239476), (874, 185224), (988, 163852), (1096, 147706), (1196, 135356), (1352, 119738), (1748, 92612), (1781, 90896), (1976, 81926), (2192, 73853), (2392, 67678), (2603, 62192), (2704, 59869), (3151, 51376), (3211, 50416), (3496, 46306), (3562, 45448), (3887, 41648), (3952, 40963), (4784, 33839), (5206, 31096), (5681, 28496), (6302, 25688), (6422, 25208), (6992, 23153), (7124, 22724), (7774, 20824), (10412, 15548), (11362, 14248), (12604, 12844)]