128939.0000000

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 10713600

約数和(自身を除く): 4877925

約数列:

[1, 3, 5, 15, 17, 23, 25, 51, 69, 75, 85, 115, 199, 255, 345, 391, 425, 575, 597, 995, 1173, 1275, 1725, 1955, 2985, 3383, 4577, 4975, 5865, 9775, 10149, 13731, 14925, 16915, 22885, 29325, 50745, 68655, 77809, 84575, 114425, 233427, 253725, 343275, 389045, 1167135, 1945225, 5835675]

約数ペア:

[(1, 5835675), (3, 1945225), (5, 1167135), (15, 389045), (17, 343275), (23, 253725), (25, 233427), (51, 114425), (69, 84575), (75, 77809), (85, 68655), (115, 50745), (199, 29325), (255, 22885), (345, 16915), (391, 14925), (425, 13731), (575, 10149), (597, 9775), (995, 5865), (1173, 4975), (1275, 4577), (1725, 3383), (1955, 2985)]