71640868

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{1229}}^1$

素因数の和:1324

約数の個数: 48

約数和(自身を含む): 144648000

約数和(自身を除く): 73007132

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 59, 76, 118, 236, 247, 494, 767, 988, 1121, 1229, 1534, 2242, 2458, 3068, 4484, 4916, 14573, 15977, 23351, 29146, 31954, 46702, 58292, 63908, 72511, 93404, 145022, 290044, 303563, 607126, 942643, 1214252, 1377709, 1885286, 2755418, 3770572, 5510836, 17910217, 35820434, 71640868]

約数ペア:

[(1, 71640868), (2, 35820434), (4, 17910217), (13, 5510836), (19, 3770572), (26, 2755418), (38, 1885286), (52, 1377709), (59, 1214252), (76, 942643), (118, 607126), (236, 303563), (247, 290044), (494, 145022), (767, 93404), (988, 72511), (1121, 63908), (1229, 58292), (1534, 46702), (2242, 31954), (2458, 29146), (3068, 23351), (4484, 15977), (4916, 14573)]