639053885

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{269}}^1\times {\mathrm{1471}}^1$

素因数の和:1781

約数の個数: 32

約数和(自身を含む): 858470400

約数和(自身を除く): 219416515

約数列:

[1, 5, 17, 19, 85, 95, 269, 323, 1345, 1471, 1615, 4573, 5111, 7355, 22865, 25007, 25555, 27949, 86887, 125035, 139745, 395699, 434435, 475133, 1978495, 2375665, 6726883, 7518281, 33634415, 37591405, 127810777, 639053885]

約数ペア:

[(1, 639053885), (5, 127810777), (17, 37591405), (19, 33634415), (85, 7518281), (95, 6726883), (269, 2375665), (323, 1978495), (1345, 475133), (1471, 434435), (1615, 395699), (4573, 139745), (5111, 125035), (7355, 86887), (22865, 27949), (25007, 25555)]