261290

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1$

素因数の和:106

約数の個数: 32

約数和(自身を含む): 524880

約数和(自身を除く): 263590

約数列:

[1, 2, 5, 10, 17, 29, 34, 53, 58, 85, 106, 145, 170, 265, 290, 493, 530, 901, 986, 1537, 1802, 2465, 3074, 4505, 4930, 7685, 9010, 15370, 26129, 52258, 130645, 261290]

約数ペア:

[(1, 261290), (2, 130645), (5, 52258), (10, 26129), (17, 15370), (29, 9010), (34, 7685), (53, 4930), (58, 4505), (85, 3074), (106, 2465), (145, 1802), (170, 1537), (265, 986), (290, 901), (493, 530)]