78278081

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{389}}^1$

素因数の和:521

約数の個数: 32

約数和(自身を含む): 101088000

約数和(自身を除く): 22809919

約数列:

[1, 7, 17, 19, 89, 119, 133, 323, 389, 623, 1513, 1691, 2261, 2723, 6613, 7391, 10591, 11837, 28747, 34621, 46291, 51737, 125647, 201229, 242347, 588557, 657799, 879529, 4119899, 4604593, 11182583, 78278081]

約数ペア:

[(1, 78278081), (7, 11182583), (17, 4604593), (19, 4119899), (89, 879529), (119, 657799), (133, 588557), (323, 242347), (389, 201229), (623, 125647), (1513, 51737), (1691, 46291), (2261, 34621), (2723, 28747), (6613, 11837), (7391, 10591)]