640206816

素因数分解:

$2^5\times 3^1\times {\mathrm{6668821}}^1$

素因数の和:6668834

約数の個数: 24

約数和(自身を含む): 1680543144

約数和(自身を除く): 1040336328

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96, 6668821, 13337642, 20006463, 26675284, 40012926, 53350568, 80025852, 106701136, 160051704, 213402272, 320103408, 640206816]

約数ペア:

[(1, 640206816), (2, 320103408), (3, 213402272), (4, 160051704), (6, 106701136), (8, 80025852), (12, 53350568), (16, 40012926), (24, 26675284), (32, 20006463), (48, 13337642), (96, 6668821)]