15638045

素因数分解:

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

素因数の和:485

約数の個数: 32

約数和(自身を含む): 21876480

約数和(自身を除く): 6238435

約数列:

[1, 5, 17, 19, 23, 85, 95, 115, 323, 391, 421, 437, 1615, 1955, 2105, 2185, 7157, 7429, 7999, 9683, 35785, 37145, 39995, 48415, 135983, 164611, 183977, 679915, 823055, 919885, 3127609, 15638045]

約数ペア:

[(1, 15638045), (5, 3127609), (17, 919885), (19, 823055), (23, 679915), (85, 183977), (95, 164611), (115, 135983), (323, 48415), (391, 39995), (421, 37145), (437, 35785), (1615, 9683), (1955, 7999), (2105, 7429), (2185, 7157)]