214804975

素因数分解:

$5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{839}}^1$

素因数の和:893

約数の個数: 72

約数和(自身を含む): 356227200

約数和(自身を除く): 141422225

約数列:

[1, 5, 7, 11, 19, 25, 35, 49, 55, 77, 95, 133, 175, 209, 245, 275, 385, 475, 539, 665, 839, 931, 1045, 1225, 1463, 1925, 2695, 3325, 4195, 4655, 5225, 5873, 7315, 9229, 10241, 13475, 15941, 20975, 23275, 29365, 36575, 41111, 46145, 51205, 64603, 79705, 111587, 146825, 175351, 205555, 230725, 256025, 323015, 398525, 452221, 557935, 781109, 876755, 1027775, 1227457, 1615075, 2261105, 2789675, 3905545, 4383775, 6137285, 8592199, 11305525, 19527725, 30686425, 42960995, 214804975]

約数ペア:

[(1, 214804975), (5, 42960995), (7, 30686425), (11, 19527725), (19, 11305525), (25, 8592199), (35, 6137285), (49, 4383775), (55, 3905545), (77, 2789675), (95, 2261105), (133, 1615075), (175, 1227457), (209, 1027775), (245, 876755), (275, 781109), (385, 557935), (475, 452221), (539, 398525), (665, 323015), (839, 256025), (931, 230725), (1045, 205555), (1225, 175351), (1463, 146825), (1925, 111587), (2695, 79705), (3325, 64603), (4195, 51205), (4655, 46145), (5225, 41111), (5873, 36575), (7315, 29365), (9229, 23275), (10241, 20975), (13475, 15941)]