18891675

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{449}}^1$

素因数の和:493

約数の個数: 72

約数和(自身を含む): 39171600

約数和(自身を除く): 20279925

約数列:

[1, 3, 5, 9, 11, 15, 17, 25, 33, 45, 51, 55, 75, 85, 99, 153, 165, 187, 225, 255, 275, 425, 449, 495, 561, 765, 825, 935, 1275, 1347, 1683, 2245, 2475, 2805, 3825, 4041, 4675, 4939, 6735, 7633, 8415, 11225, 14025, 14817, 20205, 22899, 24695, 33675, 38165, 42075, 44451, 68697, 74085, 83963, 101025, 114495, 123475, 190825, 222255, 251889, 343485, 370425, 419815, 572475, 755667, 1111275, 1259445, 1717425, 2099075, 3778335, 6297225, 18891675]

約数ペア:

[(1, 18891675), (3, 6297225), (5, 3778335), (9, 2099075), (11, 1717425), (15, 1259445), (17, 1111275), (25, 755667), (33, 572475), (45, 419815), (51, 370425), (55, 343485), (75, 251889), (85, 222255), (99, 190825), (153, 123475), (165, 114495), (187, 101025), (225, 83963), (255, 74085), (275, 68697), (425, 44451), (449, 42075), (495, 38165), (561, 33675), (765, 24695), (825, 22899), (935, 20205), (1275, 14817), (1347, 14025), (1683, 11225), (2245, 8415), (2475, 7633), (2805, 6735), (3825, 4939), (4041, 4675)]