64402975

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{28309}}^1$

素因数の和:28339

約数の個数: 24

約数和(自身を含む): 98292320

約数和(自身を除く): 33889345

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 175, 325, 455, 2275, 28309, 141545, 198163, 368017, 707725, 990815, 1840085, 2576119, 4954075, 9200425, 12880595, 64402975]

約数ペア:

[(1, 64402975), (5, 12880595), (7, 9200425), (13, 4954075), (25, 2576119), (35, 1840085), (65, 990815), (91, 707725), (175, 368017), (325, 198163), (455, 141545), (2275, 28309)]