64218665

素因数分解:

$5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{4297}}^1$

素因数の和:4377

約数の個数: 24

約数和(自身を含む): 91134792

約数和(自身を除く): 26916127

約数列:

[1, 5, 7, 35, 49, 61, 245, 305, 427, 2135, 2989, 4297, 14945, 21485, 30079, 150395, 210553, 262117, 1052765, 1310585, 1834819, 9174095, 12843733, 64218665]

約数ペア:

[(1, 64218665), (5, 12843733), (7, 9174095), (35, 1834819), (49, 1310585), (61, 1052765), (245, 262117), (305, 210553), (427, 150395), (2135, 30079), (2989, 21485), (4297, 14945)]