64049020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{19891}}^1$

素因数の和:19930

約数の個数: 48

約数和(自身を含む): 160409088

約数和(自身を除く): 96360068

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 19891, 39782, 79564, 99455, 139237, 198910, 278474, 397820, 457493, 556948, 696185, 914986, 1392370, 1829972, 2287465, 2784740, 3202451, 4574930, 6404902, 9149860, 12809804, 16012255, 32024510, 64049020]

約数ペア:

[(1, 64049020), (2, 32024510), (4, 16012255), (5, 12809804), (7, 9149860), (10, 6404902), (14, 4574930), (20, 3202451), (23, 2784740), (28, 2287465), (35, 1829972), (46, 1392370), (70, 914986), (92, 696185), (115, 556948), (140, 457493), (161, 397820), (230, 278474), (322, 198910), (460, 139237), (644, 99455), (805, 79564), (1610, 39782), (3220, 19891)]