18976725

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1$

素因数の和:251

約数の個数: 72

約数和(自身を含む): 37527360

約数和(自身を除く): 18550635

約数列:

[1, 3, 5, 9, 15, 19, 23, 25, 45, 57, 69, 75, 95, 115, 171, 193, 207, 225, 285, 345, 437, 475, 575, 579, 855, 965, 1035, 1311, 1425, 1725, 1737, 2185, 2895, 3667, 3933, 4275, 4439, 4825, 5175, 6555, 8685, 10925, 11001, 13317, 14475, 18335, 19665, 22195, 32775, 33003, 39951, 43425, 55005, 66585, 84341, 91675, 98325, 110975, 165015, 199755, 253023, 275025, 332925, 421705, 759069, 825075, 998775, 1265115, 2108525, 3795345, 6325575, 18976725]

約数ペア:

[(1, 18976725), (3, 6325575), (5, 3795345), (9, 2108525), (15, 1265115), (19, 998775), (23, 825075), (25, 759069), (45, 421705), (57, 332925), (69, 275025), (75, 253023), (95, 199755), (115, 165015), (171, 110975), (193, 98325), (207, 91675), (225, 84341), (285, 66585), (345, 55005), (437, 43425), (475, 39951), (575, 33003), (579, 32775), (855, 22195), (965, 19665), (1035, 18335), (1311, 14475), (1425, 13317), (1725, 11001), (1737, 10925), (2185, 8685), (2895, 6555), (3667, 5175), (3933, 4825), (4275, 4439)]