18915888

素因数分解:

$2^4\times 3^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{127}}^1$

素因数の和:274

約数の個数: 80

約数和(自身を含む): 51425280

約数和(自身を除く): 32509392

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 29, 48, 58, 87, 107, 116, 127, 174, 214, 232, 254, 321, 348, 381, 428, 464, 508, 642, 696, 762, 856, 1016, 1284, 1392, 1524, 1712, 2032, 2568, 3048, 3103, 3683, 5136, 6096, 6206, 7366, 9309, 11049, 12412, 13589, 14732, 18618, 22098, 24824, 27178, 29464, 37236, 40767, 44196, 49648, 54356, 58928, 74472, 81534, 88392, 108712, 148944, 163068, 176784, 217424, 326136, 394081, 652272, 788162, 1182243, 1576324, 2364486, 3152648, 4728972, 6305296, 9457944, 18915888]

約数ペア:

[(1, 18915888), (2, 9457944), (3, 6305296), (4, 4728972), (6, 3152648), (8, 2364486), (12, 1576324), (16, 1182243), (24, 788162), (29, 652272), (48, 394081), (58, 326136), (87, 217424), (107, 176784), (116, 163068), (127, 148944), (174, 108712), (214, 88392), (232, 81534), (254, 74472), (321, 58928), (348, 54356), (381, 49648), (428, 44196), (464, 40767), (508, 37236), (642, 29464), (696, 27178), (762, 24824), (856, 22098), (1016, 18618), (1284, 14732), (1392, 13589), (1524, 12412), (1712, 11049), (2032, 9309), (2568, 7366), (3048, 6206), (3103, 6096), (3683, 5136)]