78190225

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{421}}^1$

素因数の和:490

約数の個数: 48

約数和(自身を含む): 113028480

約数和(自身を除く): 34838255

約数列:

[1, 5, 17, 19, 23, 25, 85, 95, 115, 323, 391, 421, 425, 437, 475, 575, 1615, 1955, 2105, 2185, 7157, 7429, 7999, 8075, 9683, 9775, 10525, 10925, 35785, 37145, 39995, 48415, 135983, 164611, 178925, 183977, 185725, 199975, 242075, 679915, 823055, 919885, 3127609, 3399575, 4115275, 4599425, 15638045, 78190225]

約数ペア:

[(1, 78190225), (5, 15638045), (17, 4599425), (19, 4115275), (23, 3399575), (25, 3127609), (85, 919885), (95, 823055), (115, 679915), (323, 242075), (391, 199975), (421, 185725), (425, 183977), (437, 178925), (475, 164611), (575, 135983), (1615, 48415), (1955, 39995), (2105, 37145), (2185, 35785), (7157, 10925), (7429, 10525), (7999, 9775), (8075, 9683)]